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Fixed: iPhone X not charging


We are going to fix iPhone X today, the fault was that the charging icon was displayed properly, but the iPhone X was not charged after charging. How to repair step by step?
  

After testing, the charging icon on the iPhone X is displayed properly, but the percentage of power on the iPhone is getting smaller and smaller when charged, which is actually a non-charging fault. According to our maintenance experience, the L3340 and L3341 inductors of the iPhone's rechargeable integrated circuit are prone to empty soldering and pin loss for a fallen damaged iPhone.


Connect iPhone charging cable to the iPhone X tail plug flex cable, and then test the cathode of iPhone battery by UNI-T UT658 USB Tester, no voltage was found, so we judge the fault is in the charging part. If you want to delve into it, we have to measure it hierarchically, the AP part as shown in picture.


The external conditions measured are normal, according to our experience, we suspect that the inductors are empty weld and pin missing. Use QUICK 861DW hot air rework station and tweezers to remove the L330 and L3341 inductors, the pins of inductor are on the solder pad, it's like IPhone7, and the inductors are easy to empty weld and missing.

Put it under the microscope, and then replace the new inductors( note: if replace it with iPhone 6 inductors, you need to insulate it，otherwise, it's easy to short-circuit.)



Test the logic board with test fixture, and test function is normal. Using UNIT-UT68USB tester to connect iPhone, now everything is normal, the fault has been repaired.

If you want to get more repair solutions, please contact us on www.vipfixphone.com

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