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Fixed: iPhone 7 Plus stuck in recovery mode (Nand failure)
by Bellin
An iPhone 7 Plus runs slowly, and gets stuck in recovery mode when restoring. The initial problem is that the iPhone 7 Plus is running slowly, then we restart the iPhone 7P and enter the activation interface. When you activate the iPhone by connecting WIFI, it always reports a WIFI password error, but the password is correct. Trying to activate it by cellular network and it failed.
Connect the iPhone 7 Plus to a computer with the iPhone lightning cable, and then use iTunes to restore it. When the progress bar runs to 20%, it stops moving and gets stuck in recovery mode.
Based on this situation, the iPhone 7 Plus runs slowly and gets stuck in recovery mold may be caused by the iPhone Nand flash.
Use screwdrivers to remove the screws next the iPhone lightning port, use CPB screen separator to heating the iPhone 7 Plus screen, and then use LCD opening tools to open the iPhone screen.
Remove the iPhone display assembly, disconnect the iPhone battery, and then take out the iPhone motherboard.
Observing the iPhone motherboard, it looks good. Attach the iPhone motherboard to a PCB holder fixture, put it under a Black Trinocular Microscope.
Now use hot air gun to heat the iPhone Nand flash, and use tweezers to remove the iPhone Nand flash.
Use soldering iron and solder wire to clean the solder pad, and then clean it with PCB cleaner.
Now put iPhone Nand flash on the MJ 3D BGA reballing stencil, allpy some solder paste to it, and then use hot air gun to reball it.
Once done, install the iPhone Nand flash to the iPhone motherboard, and then assemble the iPhone 7 Plus.
Connect the iPhone 7P to the computer, and then use iTunes to restore it, now the iPhone 7 Plus can be restored successfully and it enters IOS system properly.
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