iPhone X No Charging Issue

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Malfunction Phenomenon

The charger function is abnormal on this phone.

Trouble Shooting

The iPhone X no charging and appears charger symbol in the left top corner of the screen. Then we plugged into the power cable and stayed in shutdown status, the phone can be switched on.

In the first step, we need to check the cosmetic of the motherboard to see if there’s any pats mission, corrosion, deformation, etc. After checking, the cosmetic is fine.

According to the experience of repair, we need to check the charging boost inductance and energy storage capacitance on the charging circuit. After checking, we found the measured one-side pin of L3340 and L3341 diode value is different from another side.

 iPhone X No Charging

But when we pressed it with the finger, the measured value back to normal. So we can conclude that the fault is related to the poor solder of L3340 and L3341.

7 6yi8o

Resolder the two inductors, or change new inductors.

Then solder the two layers of the motherboard and test the function again, the issue resolved.

iPhone X Motherboard Repair Course

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REWA Academy

As an enthusiastic educator and expert in mobile technology, REWA Academy has dedicated its career to empowering individuals through technical education. With a keen focus on cellphone repairs, they have developed comprehensive online and offline courses at REWA Academy. Their expertise spans a wide array of areas, including iPhone repair training, phone hardware, software, and advanced troubleshooting techniques. Through their writings, they aim to demystify mobile technology complexities, making it accessible and understandable for both novices and professionals in the field.

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