Saturday, January 6, 2018

Analysis & Solve: New photos can’t be saved on iPhone 6




 Why new photos can't be saved on my iPhone 6? A customers complained that. Now we need to check the iPhone, analysis the reasons and then solve this problem.

After checking,  the iPhone 6 fault is sometimes the photos can not be saved, but sometimes it's normal.  It is found that the iPhone camera can be saved now, so it's necessary to wait and observe again.

In the evening, we start disassembling to inspect what is the fault, the iPhone 6 motherboard has never been repaired, but the screw column is damaged, as shown in picture 12-1-1.



This screws column has a flashing light on the back of the camera. According to our repair experience, it is known that photos cannot be saved should be the iPhone flash IC problem. Will it be caused by screwd column? So after measuring the camera, the EN signal was found to be in a normal state, and would it be a semi - connected state?

After scraping, it is found that this line is nearly disconnected. Is it the problem here? The photo is really not saved after installing to test. Connect the line, the fault finally comes out.

Next, removing the flash IC off and cleaning the glue of the weld plate, then we start to measure the resistance, he E2 pin of the flash lamp is found to have no resistance. This is the I2C bus that connects the iPhone 6 CPU with the rear camera and the flash IC. The details are shown in WUXINJI schematic diagram.


Scraping the lead to get rid of the possibility of broken line.


The camera can get the resistance and get the exclusion of CPU false welding, it should be disconnected line problem in the plate. The solution is to connect jumper wire  from the E2 pin of the flash IC to the rear camera socket FL2329. After welding the jumper wire by QUICK 861DW rework station, the flashing light E2 has a resistance value.



Finally, install the iPhone and test it, now the iPhone 6 can store new photos.! 

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