Today we are working on an iPhone 7 that has consumption on the motherboard and drain the battery quickly. We have used a thermal camera, Flir One Pro to locate the short circuit. For this process we work with a Jbc air station, 380 degrees Celsius and 50 degrees air.

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First we remove the integrated circuit, broken, applying a little flux Amtech. Then we clean the area with the desoldering mesh and put in a new integrated circuit.
We have resolved the failure.
Thank you for watching and if you have any question, please let me know
Best regards