2021 IBOX2 PCIE NAND DFU Purple Screen Programmer For iPhone/iPad Repair

This is an article about the introduction of ibox2 programmer features, the main functions of the ibox2 programmer are PCIE Nand flash programming, unbind wifi,DFU purple screen mold for iPhone/iPad.

1. iPhone/iPad PCIE Nand flash memory IC programmer

- Ibox2 programmer can read and write format SYSCFG data of the PCIE BGA110 Nand flash, including iPhone nand flash and iPad nand flash.

- One-click to unbind the WIFI for PCIE Nand flash.

- The detailed model is as follows:

8/8P/SE2/X/XR/XS/XsMax/11/11Pro/11promax
IPxd_mini5
IPxd_Air3
IPxd_8 (2020)
IPxd_Pro (11,2th)
IPxd_Pro (12,9, 3th)
IPxd_Pro (12,9, 4th)

2. DFU Purple screen mold for iPhone iPad

- One-click to enter the purple screen for iPhone/iPad.

- Support to read and write Serial number/Bluetooth/Wifi address without disassembling

- The detailed model is as follows:

6/6P/SE/6S/6SP/7/7P/8/8P/X
IPad  mini 2
IPad mini 3
IPad mini 4
IPad air
IPad air 2
IPad5
IPxd6
IPad Pro (9,7)
IPad Pro (12,9)

Fixed ICC PRO Tristar Tester Doesn't Turn On!

Here is an ICC Pro Tristar Hydra Tester doesn't turn on, when press power button, it has no reponse, the screen keeps black. How to fix ICC PRO V2 tester no power issue?
 

Firstly, we can use the cable and plug in the charger to charge the ICC Pro tester, and press the switch of ICC Pro tester continuously for about 5 minutes, and then we will see the ICC pro screen light up.

If the above method doesn't work, then we need to charge the ICC Pro in another way.

Firstly, we need to open the ICC pro tester. Use a screwdriver or mobile phone pry tool to open the ICC Pro tester housing. (The new ICC Pro V2 tester is screw-secured, so we can use screwdrivers to remove the screws and open the case)

Them connect the ICC PRO tester with a DC power supply, and turn on DC Power supply to charge ICC Pro Tester for a while.

Now disconnect, and press the ICC Pro Tester power button, we will see the ICC pro screen light up, and it turns on successully.

iPhone XR actviation failure- Solution!

 Here is an iPhone XR with actviation failure, the iPhone XR can't be activated, it stucks on SN interface. Hers is a solution to fix iPhone XR actviation failure.

Disassemble the iPhone XR. Use qianli 3D screwdriver and CPB screen separator to open the iPhone XR screen. Remove the iPhone XR display assembly, disconnect the battery, and then take off the iPhone XR motherboard.

We noticed that this iPhone XR has repair marks.  The baseband shield cover has been disassembled, and there is repair sticker on it. And we found that the iPhone Nand flash also been repaired before, because there are some black glue around it.

Remove the repair sticker, obviously the iPhone baseband has been repaired before, the capacitors and resistors around it has been corroded and blackened.

Use Jabe UD-1200 soldering iron to smoke rosin to the motherboard, so the solder oil for the bottom pin of the IC assembly can be replaced.

Use hot air gun and tweezers to remove the iPhone baseband. Put the iPhone motherboard under a microscope to observe, the iPhone baseband IC doesn't looks good. Apply some solder paste to the baseband, and then reballing it.

After reballing, assemble the iPhone XR to test it, but the failure is still the same.

Use ADMS9 digital multimeter to measure the resistance value for the iPhone baseband power supply, we found all resistance value measured are normal.

Check iPhone motherboard again, we found the RF IC also has been repaired before, use hot air gun and tweezers to replace the RF IC, and then assemble the iPhone XR.

Now restore the iPhone XR with iTunes, and then follow the tips to activate the iPhone XR, it goes well, the iPhone XR was activated successfully.

Troubleshooting: iPhone 7P get boot failure after dropping

This iPhone 7P get boot failure after dropping, press the iPhone power button, the iPhone has no response, in a word, the iPhone 7 plus won't turn on.  We need to fix it.

Use phone disassembling tools to disassemble the iPhoen 7P, remove the iPhone display screen, disconnect the battery, and then take out the iPhone 7P motherboard.

Use UNI-T UTP3305 DC power supply to measure the iPhone 7P motherboard , trigger it, the current up to 60mA and then downs to 0, the current jumps like this over and over again, which is abnormal.

Use digital multimeter to measure the relevant voltage for the RAM, they all normal.

As we know, for the drop-damaged iPhone, the iPhone CPU virtual welding is more likely. Put the iPhone motherboard on the PCB holder fixture, and then put it under a Trinocular Microscope.

Use BGA graver blade to remove the black glue around the iPhone CPU to check if the iPhone CPU is virtual welding, but it's normal.

Based on our experience, the RAM for drop-damaged iPhone 7P is easy to short, let's remove the iPhone CPU, after removing CPU, we found the solder pad missing some pins.

Use JBC CD-2SHE soldering iron to clean the solder pad, and then solder the missing pins. After handling the solder pad well, install the iPhone CPU back to the motherboard.

Now measure the iPhone 7P motherboard with UNI-T UTP3305 DC power supply, the current tested is normal.

Install the iPhone 7 Plus, press the power button, the iPhone 7 plus is turned on successfully.

Best replacement way for iPhone 11 Pro Max A13 RAM

Here is a replacement way for replacing iPhone iPhone 11 Pro Max A13 upper layer. Use screwdriver to remove the screws at the bottom of the iPhone screen, open the screen with a LCD sucker. Remove the iPhone display screen, disconnect the battery, and then take out the iPhone 11 Pro Max motherboard.

Put iPhone 11 Pro Max motherboard to the SS-T12A heating station for separating the board, take off the iPhone 11 Pro Max motherboard upper layers, and attach it to the MJ K30 PCB holder.

Put iPhone motherboard under a Stereo Zoom Microscope to observe the A13 SDRAM, it looks good. Now use QUICK 861DW hot air gun and CPU removal blade to remove the A13 SDRAM, insert the blade from the right corner of the A13 CPU, and then slide to the top right corner. Once the SDRAM has been removed, next we need to remove the glue.

Use BGA removal blade to remove the glue on the CPU, and then clean it with PCB cleaner. Now connect the iPhone 11 Pro Max motherboard to the DC power supply to measure the current, after measurement, the current is normal.

Place the A13 upper layer to the right position, and then use hot air gun to install it back the motherboard.

Once down, cooling the motherboard, and then install the iPhone 11 Pro Max.

Press the iPhone power button, the iPhone 11 Pro Max turns on properly, and then test the iPhone functions, everything works well.

Drop-damaged iPhone XS Max Face ID not working- Fixed

 Here is a drop-damaged iPhone XS Max, the result is that the iPhone XS Max Face ID is not working. How to fix it?

First, we need to disassemble the iPhone XS Max. Use phone screen opening tools to disassemble the iPhone XS Max, remove the iPhone XS Max display screen and iPhone battery, and then take out the iPhone XS Max motherboard.

Use SS-T12A heating station to separate the iPhone XS Max motherboard, and then put it on the iSocket test fixture.

Use digital multimeter to measure the resistance value for iPhone XS Max Face ID connector, when we measured the 17 Pin of the infrared camera, we found it had no resistance value, but the value for the 15 Pin was normal, which is why the iPhone XS Face ID doesn't works. The circuit between the iPhone CPU and iPhone infrared camera 17 Pin are virtual-welded or disconnected.

Now we need to remove the glue for iPhone CPU, put iPhone motherboard under a microscope, and then use BGA graver blade to remove the glue around the CPU.

Apply some solder paste around the CPU, and then use QUICK 861DW hot air gun and BGA graver blade to remove the iPhone CPU. After the iPhone CPU is removed, use soldering iron to handle the residual glue on the solder pad, and then use JBC CD-2SHE soldering iron to solder a jump wire from 17 Pin to test if the circuit between iPhone CPU and iPhone infrared camera 17 Pin are disconnected.

After soldering, measure it with digital multimeter, the data tested is normal, now we confirm that the iPhone CPU is virtually welded, we need to re-install the iPhone CPU.

Reballing the iPhone CPU, and then install the iPhone CPU back to the motherboard. After the motherboard is cooled, use digital multimeter to measure the 17 Pin, now the resistance value is back to normal.

Next, use iSocket test fixture to test it, the iPhone XS Max Face ID tested is normal. At last, install the iPhone XS Max.

Solution: iPhone X restarts automatically after water damage

The iPhone X restarts automatically after water damage, when playing music or turn on speaker, it shuts down and restarts automatically. Here is solution to fix it.

Use screwdrivers to remove the screws at the bottom of the iPhone screen, and then put iPhone X on the CPB screen separator for heating, after a while, use screen pry tools to open the iPhone screen. Remove the iPhone X display assembly, disconnect the iPhone X battery and then take off the iPhone X motherboard.

Separate the iPhone X double layer board. Attach the iPhone X motherboard to the G-LON PCB holder fixture, use hot air gun and BGA graver to separate the board, use tweezers to remove the upper board.

Put iPhone X motherboard under a microscope, and continue to observe it, we found the iPhone front audio IC and iPhone ringtone IC are damaged, we need to replace them.

Carefully use QUICK 861DW hot air gun and tweezers to remove the iPhone front audio IC and iPhone ringtone IC, apply some solder paste to the solder pad, and then use DES H95 Phone rework station to solder these 2 chips back the motherboard.

Now re-soldering the iPhone X upper layer board and lower layer board, and then assemble the iPhone X. Turn on the iPhone X and test it, when playing the music or turn on speaker, the iPhone X still working properly.



After testing for a day, everything goes well on the iPhone X.

iPhone screw location diagram map and related screw numbers

How to get the iPhone screw location diagram map and releate screw numbers? Here we can get it.  Here are iPhone screw location map and releate screw numbers for iPhone XS Max, XS, X, 8, 7, 6.

Because the iPhone motherboard is too precise, once a screw was installed incorrectly, it can cause problems for the iPhone, such as the iPhone back cover can't be covered, damage the iPhone screen, or even damage the iPhone motherboard, so we need numbered the iPhone screws and make the iPhone screws location diagram.

As we know that there are 64 to 84 screws on an iPhone, which including 26 to 38 different models. For example, the iPhone XS has 58 screws, in 38 different models, different sizes, length, and screw hole. Therefore, it's very important to know the correct positions of the screws on the iPhone; we have to know exactly where each screw corresponds to the phone, that's why we marked the number for the screws.

We put each screw model will be pack in a separate bags, the users just need to choose the screws by following the iPhone screw location diagram, so you won't use the wrong screws model on the iPhone. And finally, you won't damage the iPhone because of the wrong screw.

And we mark the screws with a physical marking method, classify and number all screw models from iPhone 6 to iPhone XS Max, and make them into a corresponding high-definition screw location diagram.

Finally, you can select the correct numbered screw against the iPhone screw map, so you can install it correctly.

Solved: iPhone XR 4G Network Unstable

Here is an iPhone XR with 4G netowrk problem, 4G signal on the iPhone XR is not stable, it always turns to 2G. How to solve tihs problem?

Use phone opening toosl to disassemble the iPhone XR to remove the iPhone XR motherboard. Observing the iPhone motherboard, we can see that the iPhone baseband part, the medium frequency part and the amplifier IC has been repaired.

Fixed the iPhone XR motherboard by a MJ A22+ PCB fixture, and then remove the iPhone NAND flash. Put it under the Black Trinocular Microscope, use BGA scraper blade to remove the black glue, and then remove the iPhone Nand flash, and then remove the iPhone baseband CPU.

Next we're going to remove the iPhone main CPU. Put iPhone motherboard under a microscope, and then use BGA scraper blade and hot air gun to remove the glue for A12 CPU, and then use medical cotton to clean it. Now use hot air gun to heat the main CPU, after a while, carefully insert a blade, and slide the blade gently to both sides, and then remove the main CPU.

Next we need to remove the logic eeprom IC, as we know, since the iPhone X and later models, the logic eeprom IC is multi-pin, if the logic eeprom IC doesn't been installed, then it will report unknown error 9. Use hot air gun and BGA scraper to remove the logic eeprom IC.

Because the baseband eeprom IC is too small, so we can remove it later. Now we need to install those IC that has been removed previously to the new motherboard.

First install the iPhone Nand flash. Check iPhone Nand flash solder pins, there are 3 solder pins that are grounded, so we can leave them. Remove the glue from the Nand flash, place it to the MJ 3D BGA reballing stencil, apply some solder paste, and then soldering the tin balls on the Nand flash.

After reballing, we need to unbind the WIFI. Use JC PCIE-XR programmer to unbind the WIFI, and then we can install it to the new iPhone motherboard. Apply some solder paste to the solder pad, use DES H95 rework station to install the iPhone XR nand flash to the new motherboard.

Now we need to reballing iPhone basebande CPU and iPhone logic eeprom IC. After reballing, we need to handle the iPhone main CPU. Use hot air gun to solder the tin, clean it, and then reball it.

Install the A12 CPU on the new motherboard. Put main CPU on the right position by tweezers, and then use hot air gun to heat it. When the solder oil overflows, gently push the CPU with a Titanium Alloy Tweezers to see if it is reset, if it can reset, then we can stop heating.

Next install the iPhone logic eeprom IC and iPhone baseband CPU on the new motherboard.

Now we need to remove the iPhone baseband eeprom IC from the old motherboard, and then install it to the new motherboard.

At last, test the iPhone XR 4G network, it's working perfectly.

Here get hardware solution to fix iPhone XS Boot Failure

The iPhone XS can't be turned on after pressing the power button, after testing, we confimed it's caused by hardware problem, now let's get hardware solution to fix the iPhone XS boot failure.

Disassemble the iPhone XS by phone opening tools, connect the iPhone XS to the DC power supply to test the boot current, when press the iPhone power button, the current instantly reaches more than 800mA, and then drops to 0mA immediately.

Remove the iPhone display screen, disconnect the iPhone battery, and then remove the iPhone motherboard.

Use digital multimeter to measure the circuit of the power supply, we found the PP1V1_S2 is short circuited.


Log in to ZXW online account to check iPhone schematic diagram,  we need to measure the capacitors on the PP1V1_S2 circuit. After measurement, we know that those capacitors are normal. Therefore, we suspect the problem is between the iPhone CPU and the iPhone motherboard, the iPhone CPU tin balls may have broken, and then cause the PP1V1_S2 short circuit.

Attach the iPhone XS motherboard upper layer to the SS-601K PCB fixture, apply some solder paste around the iPhone CPU, and then use BGA removal blade and hot air gun to remove the iPhone CPU.

After the iPhone CPU is removed, put iPhone motherboard under the Trinocular microscope, and then use BGA removal blade to remove the glue on the iPhone motherboard.

Next, put MJ 3D BGA reballing stencil on the iPhone CPU; apply some Mechanic solder paste to the BGA reballing stencil, and then use hot air gun to reball it.

After reballing, apply some solder paste on the iPhone motherboard, and then put iPhone CPU on the right position, use DES H95 hot air gun to solder it back the iPhone motherboard.

Now install the iPhone XS, press the power button, the Apple logo appears normally, and then the iPhone XS enters IOS system successfully ,the iPhone XS boot failure has been solved!

iPhone 6 flashlight failure with hardware solution

Here is an iPhone 6 with flashlight failure, after measurement, we confirmed it's the hardware problem, here is a hardware solution to fix the iPhone flashlight problem.

First of all, we need to disassemble the iPhone 6. Use screwdrivers to remove the screws next the iPhone lighting port, put iPhone 6 on the CPB screen separator for heating, turn the iPhone display screen down and connect it to the CPB screen separator. After a while, we can take out the iPhone 6, and then use LCD sucker to open the iPhone screen easily.

Carefully remove the iPhone display screen, disconnect the iPhone battery, and then remove the iPhone motherboard.

Put iPhone motherboard under the microscope to observe, it’s found that there is no iPhone flashlight IC, and the solder pad of the iPhone flashlight IC has lost several pins.

We contacted the owner of the iPhone 6 for more details, and the owner of the iPhone said that this iPhone 6 was repaired by other shop, and they replaced the iPhone flashlight IC, but it didn’t work because the iPhone flashlight IC was burned after a while. So they removed the iPhone flashlight IC and didn’t install it on the motherboard.

There are 8 Pins were lost by counting the missing pins under a microscope. Log in to the ZXW online account and check the iPhone 6 schematic and bitmap, and we can see that for those missed Pins are grounding line, the power supply of the LEDI light, the Pin of the flashlight auto boost Pin.

The iPhone flashlight IC was burned because the iPhone flashlight IC lifted boost Pin lost, the signal is in a suspended state, causing the iPhone flashlight IC to burn after power-on.

Attach the iPhone motherboard to the PCB holder fixture, put it under a microscope, apply some solder paste to the motherboard, and then use QUICK TS1200A hot air gun to solder the missed pins on the solder pad, and then use green UV oil to insulate and cure it.

Now, install an iPhone flashlight IC to the motherboard, and then assemble the iPhone 6.

Press the power button to turn it on, get into IOS, test the flashlight function on the iPhone 6, now iPhone 6 flahslight function works perfecly.

iPhone screen doesn't display - how to fix?

After pressing the iPhone power button, the Apple logo doesn't appear as usual, and the iPhone screen keeps black. What's wrong? Why iPhone screen doesn't display? How to fix?

As we know, the iPhone software problem can cause iPhone black screen problem, meanwhile, the iPhone screen itself problem and iPhone motherboard problem also can cause iPhone black screen failure. Here are some suggestions to fix it.


1. Force restart iPhone

Different iPhone models have difference methods to force restart.

- Force restart iPhone 6S and earlier

Press and hold the iPhone power button and iPhone home button at least 10 seconds, release both buttons when you see Apple logo appears on the screen.

- Force restart iPhone 7 or 7P

Press and hold the iPhone power button and iPhone volume down button at least 10 seconds, release both buttons when you see Apple logo appears on the screen.

- Force restart iPhone 8 / 8P / X

Press then release the iPhone volume up button, immediately press then release the iPhone volume down button, and then press and hold the iPhone side button till you see an Apple logo appears on the screen.

2. Update IOS

Generally, there are 2 ways you can update IOS, one is update it on the iPhone, but in this case, we don't choose it, because the iPhone screen doesn't display, so we have to choose the second way, use iTunes or other third-party software to update iPhone IOS.

- Connect iPhone to the computer by iPhone lightning cable
- Update iTunes to the latest version
- Open iTunes and select your iPhone
- Click Summary, and then click Check for Update.
- Click Download and Update

3. DFU restore iPhone
DFU restore iPhone will erase all settings and data on iPhone, so it can most deeply to fix iPhone software problem.

Before you are going to restore iPhone, you should backup your iPhone.

- Connect iPhone to the computer by iPhone lightning cable
- Update iTunes to the latest version
- Back up iPhone by iTunes
- Put iPhone in DFU mode
- Use iTunes to restore iPhone

After tried above the software solutions, if the iPhone LCD still shows black, then you should check iPhone hardware parts, such as the damaged iPhone display screen or damaged iPhone motherboard.

4. Replace new iPhone display screen

If the iPhone display screen is damaged, you can't fix the black screen problem by software solutions, we can try to fix it by replacing the new iPhone display screen.

- Use phone opening tools to disassemble the iPhone
- Remove the iPhone display screen
- Install the new iPhone display screen
- Power on iPhone and test it

After replacement, if the iPhone screen stills no display, then possible it's the problem of the iPhone motherboard.

5. Repair iPhone motherboard

As we know, the iPhone motherboard is the core part of the iPhone, there are many components, some components can cause iPhone no display problem, such as iPhone flash IC, iPhone backlight IC and so on.

In order to repair find out the faulty part on the iPhone motherboard, we need to disassemble the iPhone, remove the iPhone motherboard, and then use DC power supply or digital multimeter measure the iPhone motherboard to find the faulty part,so that we can fix it.

For replacing iPhone screen and repairing iPhone motherboard, the phone repair skills and phone fix tools are required; if you are not the professional repair man, please don't do the last 2 suggestions by yourself, just contact Apple Care or iPhone repair shop.

iPhone 6S rear camera failure with PCB repairing solution

Here is an iPhone 6S with rear camera failure problem, this iPhone rear camera is damaged by water, so we need to check iPhone hardware aspect to fix it. Here we can get an PCB repairing solution. 

 

1. Disassemble the iPhone 6S.

Use screwdrivers to remove the screws at the bottom of the screen, and then put iPhone screen on the CPB screen separator for heating. After heating a while, we can use LCD sucker to open the iPhone screen.

2. Replace the iPhone rear camera. 

Remove the iPhone display screen, becuase it's the iPhone camera problem, so we try to fix it by replacing the new iPhone camera.

Remove the iPhone rear camera, and then install a new camera.  Assemble the iPhone 6S, and test the camera function, unfortunately, the iPhone 6S rear camera still doesn't work.

3. Remove the iPhone motherboard

So is it the iPhone motherboard problem? we need to remove the iPhone motherboard to check it.

Use phone opening tools to disassemble the iPhone 6S, remove the iPhone display assembly, disconnect the iPhone battery, and then remove the iPhone motherboard.

4. Repair the iPhone motherboard.

Put iPhone motherboard under the microscope to observe, we found the power supply 2.85V tube of iPhone rear camera has been burned, use tweezers to remove the 2.85V tube directly

Login to the ZXW online account to check iPhone schematic diagram,  we know that this IC is converted from the main power supply VCC_MAIN to 2.85V for iPhone rear camera

After removing this chip, we found the main power supply pin has been burned Because this IC is too small, it's difficult to replace, and soldering a jumper wire by QUICK 861DW hot air rework station also is not good, so we are going to borrow 3V voltage.

As we know, there is a 3V test point on the iPhone motherboard, use digital multimeter to measure it, so we can find out this 3V test point.

Soldering a jumper wire from the 3V test point by QUICK TS1200A, apply some green UV oil on it.

5. Assemble the iPhone and test it.

Assemble the iPhone 6S, press the power button, it's turned on smoothly. After entering the IOS system, test the camera function, now the iPhone rear camera is working properly. The repairs ended!

how to fix iPhone 7 Plus fast consumption failure

An iPhone 7 Plus with fast consumption failure, what causes the iPhone battery to consume so fast? Actually, iPhone fast consumption is common problem, the iPhone setting , the iPhone IOS system , the Apps , the iPhone battery , the iPhone motherboard all can cause this failure, so how to fix it?

1. Make Sure The Auto Brightness Is On

For the iPhone display screen, we can adjust the brightness in the system. Someone like to keep their iPhone display always on, but continuous screen brightness consumes a lot of battery power, we can use Auto Brightness function to avoid this case.

In order to make turn on the auto brightness, please go to Settings -> General -> Accessibility -> Display Accommodations. And you can go to Settings-> Display & Brightness to set the time for Auto-Lock.

2. Disable Some Notifications

When you download the new App, they will prompt you that allow notification or not, and you will choose allow it. However, for many Apps, the notification are not necessary，because the notification will consume the power of the iPhone battery.

In order to disable the notification for App, please go to Settings-> Notifications, check NOTIFICATION STYLE, and then tap the App you want to disable the notification, and then turn the button to the left side on Allow Notifications.

3. Turn On Low Power Mode

Low Power Mode will reduce display brightness, optimizes device performance, and minimizes system animations. Low Power mode automatically turns off when your device hits 80 percent charged. After you turn on low Power mode, when your iPhone battery charge is below 20%, it pauses background application refreshes and automatic downloads, so it can maintain the basic functions of the iPhone 7 Plus.

Turn on the lower power mode on iPhone 7 Plus, please go to Settings > Battery, and then tap Low Power Mode.

4. Disable Some Location Service

Most of Apps has location services, and but not all location service are needed. As we know, there are two options for location service on App, one is Never, and the other one is While Using the App. For some App, we can choose never, because the location service will constantly drain your iPhone battery.

In order to disable some location service on App, please go to Settings -> Privacy -> Location Services, tap the Apps that you want to disable the location service, and then choose Never.

5. Other solutions:

- Check iPhone battery

If the iPhone 7 Plus has been used for a long time, then there could be a problem with the iPhone battery. We can use iPhone battery tester to test the working status of the iPhone battery, if the working status tested are not good, then we should try to replace the new iPhone battery.

- Check iPhone motherboard

If there is a problem with the iPhone motherboard, then it also will cause the iPhone battery consumption problem. We can disassemble the iPhone to measure the iPhone 7 Plus motherboard.

4013 Error: iPhone 6S Plus 4013 error fix details

 4013 error appears on the iPhone 6S Plus, how to fix it? When we use iTunes to restore the iPhone 6S Plus, it reports an unknown error 4013 and failed to restore. We tried restart the iPhone, update the IOS,  and try to restore it with another computer, but all failed. Then we go to check iPhone motherboard, and we found the problem, here is the fixed details.

Use phone opening tools to disassemble the iPhone 6S Plus, remove the iPhone display screen, disconnect the iPhone battery, and then remove the iPhone motherboard.


Put iPhone motherboard under the Trinocular Microscope to observe,  we found this iPhone has traces of being repaired; the iPhone baseband IC and iPhone baseband power IC has the traces of soldering.

We need to reball this IC. Reballing the tin on the chip, and then solder the iPhone baseband IC and iPhone baseband power IC. Now connect the iPhone motherboard to the computer to test it.

Use iTunes to restore it, when the white Apple logo appears, it stuck on progress bar and won't move, according to our experience, this problem mostly is caused by iPhone Nand flash.

Use digital multimeter to measure the each power supply on the iPhone Nand flash, all data measured are normal.


Attach the iPhone motherboard to the PCB holder fixture, and then use QUICK 861DW hot air rework station and tweezers to remove the iPhone Nand flash, and then install the new iPhone Nand flash.

Now connect it to the PC, use iTunes to restore it, now the progress bar goes smoothly, and then it enters the activation interface.  Assemble the iPhone 6S Plus and power it, everything goes well!

iPhone 7 front camera doesn't work with Troubleshooting tips

The iPhone 7 front camera doesn't work anymore after water damaged,  when open the iPhone front camera, it keeps black and won't take photos or videos, we can fix it here!

Becasue the iPhone 7 front camera doesn't work after water damaged, is the iPhone front camera itself damaged? Try to fix it by replacing the new iPhone front camera.

Use phone opening tools to disassemble the iPhone 7, remove the iPhone display disassembly, and then remove the iPhone front camera.

Next install it with the new iPhone front camera, and then install the iPhone 7 to test, but the problem is still there, which means it's not the problem of the iPhone camera, is it caused by iPhone motherboard?


Disassemble the iPhone 7 again, remove the iPhone display assembly, disconnect the iPhone battery, and then take off the iPhone motherboard.

Observe the iPhone motherboard by microscope,  we found that the area of water had corroded and blackened.  According to the iPhone schematic diagram, we know that they are the iPhone front camera 1.8V power supply insurance inductor FL2901 and right corner of the camera socket.


Attach the iPhone motherbaord ot the PCB holoder fixture, clean it with PCB cleaner, apply some solder paste to it, and then use QUICK 861DW hot air rework station to solder it.

After the motherboard cools, assemble the iPhone 7. Press the power button to turn it on, test the iPhone camera, now the iPhone front camera is working normally, and all other functions tested are normal.

Solved: iPhone 6 Plus always restarting and got error 9

Today, we are going to talk about iPhone 6 Plus restart problem. After pressing the iPhone power button, the iPhone screen displays properly, but it won't turn on smoothly, becuse it always restarting, and it got a iTunes error 9. How to solve this problem?

Step 1:  Force restart iPhone 6 Plus
In order to force restart iPhone 6 Plus, please press the iPhone home button and the iPhone power button at the same time, after about 10 seconds, the Apple logo will appears on the iPhone display screen, and then you can release both button.

However, after the Apple logo appears, the iPhone 6 Plus was back to restart automatically.

Step 2: Update IOS

In order to update IOS, please connect the iPhone 6 Plus to the computer via iPhone lightning cable, open iTunes on the computer, and then use iTunes to update the IOS.

After updating, press the iPhone power button, the Apple logo appears normally, the problem still the same.

Step 3: Restore iPhone 6 Plus

In order to restart iPhone 6 Plus, please connect the iPhone 6 Plus to the computer via iPhone lightning cable, open iTunes on the computer, make sure the iTunes is latest version, and then use iTunes to restore iPhone.

However, it failed to restore and the iTunes reports unknown error 9.

According to our experience, the iPhone restarts automatically when white Apple logo appears, and there is a iTunes error 9, these problems are related with iPhone CPU, iPhone EEPROM IC and iPhone Nand flash.

Step 4: Solve it in hardware aspect

Use phone opening tools to disassemble the iPhone 6 Plus, remove the iPhone motherboard, there is no obvious faulty point.

Remove the iPhone CPU cover shield, apply some heat-resistance tape to the components next to the iPhone CPU, and then use QUICK 861DW hot air rework station and tweezers to check remove the iPhone CPU.

After removing the iPhone CPU, it's found that there is a circuit leading to the eeprom was disconnected, and the solder pad of the another circuit also is unstable, so we are going to solder a jumper wire to the corresponding pins of the eeprom IC.

Attach the iPhone motherboard to the PCB holder fixture, and then put it under the microscope. Use hot air gun to solder the jumper wire on the iPhone CPU solder pad. When it's done, soldering this jumper wire to the pins of the eeprom.

Now we need to weld the iPhone CPU back the motherboard, and then assemble the iPhone 6 Plus.

Finally, press the iPhone power button, the iPhone 6 Plus is turned on properly. Testing the functions, all functions works properly.

ZXW software won't open? – Download upgraded V3.0 ZXW software

ZXWTEAM upgraded the ZXW V3.0 software, and then some users complained that their ZXW online account can't be used, because the ZXW V3.0 software doesn't work, because you need the upgraded V3.0 ZXW software.  Generally, the V3.0 ZXW software can be updated automatically, but some regions failed to update automatically, here you can download the upgraded V3.0 ZXW software.

After opening the ZXW V3.0 software on the computer, it needs to be updated, you can follow the tips to update it. If it reports update error or update failed, you can use this link.

Upgraded V3.0 ZXW software download link:

https://mega.nz/#!JZ0zSYyD!GJ7qLWYoucfLppILEL3l4vhrMNphnAawKhik0IidDB0


Now, you can open the software, login your ZXW account, now you can use the ZXW online account smoothly.

Drop-damaged iPhone X speaker doesn't work- how to fix?

The iPhone X speaker doesn't work after dropping, how to fix it? After checking, we confirmed the iPhone X speaker is damaged by dropping, now we need to fix it.

Test the iPhone X, when we click a ringtone, there is no voice from the bottom speaker. We insert the earpiece, we can hear the voice in earpiece mode.

Based on our experience, the iPhone audio circuit is normal, but the bottom speaker is not working, we need to disassemble the iPhone X again.

Use phone opening tools to disassemble the iPhone X, carefully remove the iPhone X display screen, disconnect the iPhone battery, and then disconnect the iPhone X tail plug flex cable.

Use digital multimeter to measure the socket of the iPhone tail plug flex cable, the data tested is normal, which means the bottom speaker is working properly. Measure the iPhone motherboard connector, after measuring, we found there is circuit line of the one pin is open circuit.

Login to ZXW online account to check iPhone X schematic diagram, we know that this pin is connected to the second pin of the iPhone ringtone amplifier IC through by the middle layer pin S162 of the iPhone X motherboard. So, we need to check this circuit carefully.

Carefully take out the iPhone motherboard, apply it to the iPhone X fixture holder, and then use QUICK 861DW hot air rework station to remove the upper layer.

Observe the upper layer under the Stereo Zoom Microscope, we find that there are many pins are missing on the upper layer, which including S156 pin of the NFC circuit.

According to our repair experience, we think it's because the iPhone was dropped and then it caused virtual welding and pins missing on the iPhone motherboard.

Remove tins on the solder pad and upper layer, clean the iPhone motherboard. Use digital multimeter to measure the diode data of the S162 pin and S163 pin, the data tested are normal.

Now, we know that the open circuited is caused by the virtual welding of the middle layer.

Soldering a jumper wire on the S166 pin, apply some green UV oil to it, and then use UV light lamp to solidify it. Next reball the tin on the lower layer.


At last, assemble the iPhone X, and turn on the iPhone X to test it, the speaker function works properly. The problem has been fixed!

Troubleshoot: iPhone X failed to boot

Today, we are going to talk about iPhone X problem. This iPhone X is failed to boot,  we confirmed the iPhone display screen and iPhone battery are good, so now we need to check iPhone X motherboard. As we know, the iPhone X logic board is double layer designed, so we have to be patient and be carefully during the repair process.

Firstly, we need to tear down the iPhone X.  Use phone opening tools to disassemble the iPhone X, and then remove the iPhone dispaly screen, disconnect the battery, and then remove the iPhone X motherboard.

Now, we need to separate the folded motherboard, we can put iPhone X motherboard on the SS-T12A heating station, so we can separate the motherboard.

After separating the motherboard, we  need to measure the iPhone X upper layer logic board with DC power supply, the current is abnormal, now we confirm that the faulty is on the iPhone X upper layer.

Use digital multimeter to measure the iPhone power supply voltage of the upper layer, we found that there is no voltage value on C2771 and C2770.

Continue to measure the C2771 , it is normal. Then measure the C2770, the problem was found, the inductor L2770 is damaged.

We need to replace the damaged L2770. Attach the upper layer to the iPhone X PCB Holder, in order to protect the surrounding components for L2770, we need to stick High-Temperature Adhesive Tape in there. Use QUICK 861DW hot air rework station to remove it.

After removement, re-weld the new inductor L2770 to the motherboard, and then measure it again, now the data is normal.

Finally, install the iPhone X, and test it, the iPhone X is turned on successfully after pressing the power button, the trouble has been solved!