SOLVED: iTunes shows 4005 error code after NAND expand on iPhone 6 Plus

Here is a advice, when you expand the NAND memory Flash, you'd better more carefully or find the professional to do it, because it is very easy to damaged your iPhone. Here is a case, when someone expand the NAND of iPhone 6 Plus, 3/4 solder joints have been dropped, then jump wire to it, but when root it, it shows 4005 error and screen shows white Apple logo. Let's see what's going on.

When we receive the motherboard, it has no NAND Flash and many jumping wires on PCB with green oil, as shown in picture 6-86.

After observing the outer looks of the motherboard, we use multimeter to measure the diode data of all the solder joints and they all have data. But, comparing these data with that I get from my previous repair cases (picture 6-87), I find that pin G5 should be about 700 and J5 should be about 500 (notice: different multimeter shows different data). While these two joints is about 700. The two data should not be the same. We guess that someone must jump the wrong wire.

As shown in picture 6-88, when scratch the green oil carefully, we find that there is a wire and a via. Measure its diode data. The data of wire is about 700 while the data of via is about 500. Now we can be sure that it is jumped the wrong wire.

Re-jump the wire and paint green oil. Use multimeter to Measure the diode data of pin J5. It is about 500. In case of other problems, measure the diode data of all the solder joints again under the stereo microscope and find other two joints that are jumped the wrong wire. Fix them one by one.

Then assemble the NAND Flash, root it again. The screen still displays white Apple loge without the progress bar. But iPhone now can recognize NAND Flash because it shows white Apple loge in seconds. I presume that CPU is pseudo soldering or the board is disconnected. Considering the stability of whole iPhone, we use the other workable motherboard to replace the original one.

Finally, we test it and all is fine, the 4005 error code was been solved, the iPhone 6 Plus can back to normal work.

Security Alert: short guides for improve the safety of the iPhone

I believed that many people have experienced the loss of cell phones, no matter it is accidentally lost or stolen, or robbed. However, the cell phone may have a lot of privacy, such as contact person, photos, bank card and credit card information, etc. So, we have to strengthen the security of the phones. Vipporg now give tips for increasing iPhone security.

1.  Apple ID and password. Please set and use strong and unique passwords that are hard to decipher. Don't be afraid to forget your password, now have a unlock passcode tool for unlock the forgotten password. Now iPhone have the option to six-digit codes to unlock a device, you'd better use this feature. Try not to choose a password related to your birthday, phone, id number, name, etc.  There is one thing you can do in here, go to Settings>Touch ID & Passcode, you can see the optional about ALLOW ACCESS WHEN LOCKED, turn off as many features as you’d like under the Allow Access When Locked section. Once turned off, you won’t be able to access these features until you unlock your iPhone.

2. Open "Find my iPhone".  This function can help you locate your phone, track where it is or where it’s been, and remotely erase data in case you can't recover the device. You can also make use of the two-factor identification option available on iCloud.

3. Open "erase data".  If your iPhone failed to enter the password 10 times, it will erase all of data on your iPhone. You can find the data from your iCloud backup.

4. Two-factor identification option. When you enter your Apple ID and password for the first time on a new device, there are two steps waiting for you. Enter your regular password at the beginning. Then you will have to verify your identity with a six-digit verification code using one of your other devices. You can set it on your Apple ID account page.

5. Don't jailbreak your iPhone.  If you jailbreak your iPhone, it will prevent you from updating your apps and IOS version, preventing you from immediately patching bugs and vulnerabilities.

6. Choose secure networks.  When we need to use the Internet, we'd better choose a secure network. Unsecured Wi-Fi networks can be used by attackers to intercept data via man-in-the-middle attacks.

7. Download security genuine App.  Resist potential attacks, it can greatly reduce threats from apps and links before you even download them.

Finally, we hope your iPhone can be in safe state, and we need to find more security settings to protect our iPhone. If you have any ideas, please share with us.

CAMERA ERROR: iPhone 6S Plus liquid intrusion then rear camera not working

As the saying goes, the knife cuts bread and fingers. Water is the essential thing of human body, but not your cell phone, you must keep your cell phone far away from the liquid, and otherwise, it will damage your cell phone. There are many examples, today we are going to talk about the iPhone 6S Plus camera issue after liquid damaged.

Problem description

The iPhone 6S Plus accidently drop into water, and then it has no backlight, when fix it, the front camera is normal, however, the rear camera is not. The 2.8V chip is replaced.

Solution

1. Disassemble the iPhone with phone opening tools, we found that some components near the camera socket J3200 are eroded. After checking the circuit diagram, we find that three inductors are missing. The three inductors in bitmap are shown in yellow points in picture 1 and material objects are shown in picture 2.

 

 1

2

2. Directly short connect the two ends of the inductor to speed up. After the whole iPhone is fixed, we find other workable inductor to assemble. After short connecting the two ends of the inductor, use multimeter to measure the diode data to ground of its socket, the data is normal. We think it recovers now. So we assemble camera and energize it to test. The problem is still the same. Remove the camera and energize motherboardto measure its voltage. First, we measure whether I2C bus has 1.8V voltage as well as the 1.8V and 1.2V voltage that rear camera need. The teat points are shown in yellow parts in picture3.

3

3. The above voltages are normal. We measure a special voltage 2.85V, the pin 16 in picture 4. After assembling rear camera and turn on iPhone to open rear camera, this voltage will appear. We cannot measure it because the flex cable is connected, so we doing jump wire to measure it.

4

4. After measuring, we find no 2.85V voltage. The later series of iPhone 6S, the front 2.85V voltage is output by power chip while the rear 2.85V voltage is made by LDO reduction voltage chip U3200. The circuits of LDO chip are shown in picture 5.

5

The U3200 in bitmap is shown in picture 6. 

 6

5. Observe camera under the microscope, picture 7 ,it has no apparent corrosive behavior. Measure the working condition of VIN and EN, which are normal.  Besides, it has replaced U3200 before, we suspect that U2300 was replaced with a bad, so we replace the new U2300.

 7

Finally, we assemble the rear camera, and test the front/rear camera, all is normal. This iPhone 6S Plus was been repair, and it can back to normal work.

Note:

The front and rear cameras of iPhone 6 and iPhone 6 Plus use the same 2.85V voltage. If 2.85V voltage has problems, both front and rear cameras cannot be used.

The iPhone 6 charging port was damaged? Just replace it.

 There is no perfect thing in the world,  all we can do is try ro make things better.  That's how we treat iPhone, even though it is very it's fine, but there are still many problems,  perhaps it is because of the use of a long time or may be improper use, such as charging port issue,  touch ID issue, battery issue and so on.

If your iphone 6 have charging issue, maybe the charging port was broken. Then, we need to replace the new one. Now, the vipprogrammer tell you what to do.

First, prepare the repair tools for replace charging port needed, and clean up the clean space, makesure your charger works and your charging port is free of dust and debris that could prevent a solid connection to your charger.

the repair tools you needed:

1. Screwdriver
2. Pry tool/spudger
3. Sucker


Now, all the things are fine, let's do it

1: Remove the two screws adjacent to the charging port.

2: Place the suction cup on the front screen, toward the bottom, and lift so the front screen assembly hinges at the top. You might need to use the pry tool or spudger to gently pry it up at the bottom seam.

3: Remove the five front panel assembly cable bracket screws, then remove the bracket.

4: Use the spudger or pry tool to disconnect the front camera/sensor cable connector, home button cable connector, digitizer cable connector, and display data cable connector. You can now remove the front screen assembly completely.

5: Remove the two battery connector bracket screws, then remove the bracket.

6: Use the spudger or pry tool to disconnect the battery connector, charging port assembly cable, and antenna cable connector.

7: Remove the two speaker screws, then remove the speaker.

8: Remove the two vibrator screws, then remove the vibrator.

9: Remove the two charging port bracket screws, then remove the bracket.

10: Remove the microphone bracket screw, then remove the microphone bracket.

11: Remove the six charging port assembly screws.

12: Use the spudger or pry tool to gently peel the charging port assembly from its underlying adhesive, working from the right side toward the headphone jack.

13: Use the spudger or pry tool to slide the headphone jack out of its socket. You can now remove the charging port assembly completely.

14: Insert the new charging port assembly, then follow these steps in reverse order to reassemble your iPhone 6.

Now, your iPhone 6 can charging normally and can back to normal work.

iPhone 6 firmware version was gone, how can i get it back?

The iPhone 6 has been dropped before, the rear cover was bended, but it can use normally. We all want to use the perfect thing, so we replace the rear cover. Unfortunately, then we cannot find the firmware version in "about iPhone". Something wrong, we need to find the problem, and fix it.

1. Disassemble the iPhone 6, remove the motherboard. Observing from the side face, we can find that the board bends. We presume that the baseband or the baseband power supply is pseudo soldering. Energizing it and turn it on to test the power supply. VREG_SMPS2_1V25, VREG_SMPS3_0V95 and VREG_SMPS4_2V075 are normal. Only VREG_SMPS1_0V90 has no voltage. The circuitdiagram of these voltages is shown in picture 1.

The test points of VREG_SMPS2_1V25, VREG_SMPS3_0V95 and VREG_SMPS4_2V075 in bitmap are shown in picture 2. They are all measured at the inductors around the baseband.

2. According to experience, I cannot measure the baseband at CUP, which suggests that will cause no voltage on VREG_SMPS1_0V90. As the board bends slightly, we tear down the baseband and test it carefully, but I do not find any dropping pins. I continue to measure the diode data of I2C bus BB_EEPROM_SDA and BB_EEPROM_SCL that act as communication between baseband and baseband chip. The data is 650, which is normal. The circuit diagram of I2C bus is shown in picture 3.

3. Measure whether the communication circuits between CPU and baseband are normal or not. Use multimeter to measure the diode data that baseband flows to CPU signal circuits, the test points are shown in picture 4. We can find that the diode data of the two yellow points are infinite, as show in picture 5. They are the UART bus signals that run to CPU, named BB_CTS_L and BB_UART_RTS_L.

                                               

4

4. Tear down the CPU, and make sure whether it is pseudo soldering or disconnecting. After tearing it down and measuring, we find that the two solder pads are connecting to the yellow points in picture 5. So CPU is pseudo soldering. After reassembling CPU, we can find the firmware version in “about iPhone”. 

 

5

Finally, the problem of iPhone 6 is removed and it back to normal work.