iPhone X Boot loop With Large Current

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Malfunction Phenomenon

Receive an iPhone X Boot loop With Large Current when we turned it on, and the current was larger than normal when we checked with the DC power supply.

iPhone X Boot loop With Large Current

Trouble Shooting

Large current means there might be some shorted issue. Then we can take out the motherboard and turned on to test first, touch the motherboard to feel which part gets hot, we found the NAND flash chip and its surrounding area was hot. There were too many components in this area. 

iPhone X Boot loop With Large Current

Then we used a thermal camera to help us to locate the shorted components. With the help of the thermal camera, we could see that C2647 was extremely hot, which indicates that the fault was related to C2647. 

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After replacing the capacitor with a new one, assembled all parts, and turned on the phone to test again.

The phone can be turned on normally, the problem gets resolved.

iPhone X Boot loop With Large Current

iPhone X Motherboard Repair Case

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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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