Have you ever met the situation on your iPhone 7 Plus? If it has a charging problem, such as iPhone 7P will not charge, can not connect to PC, iPhone charging icon percentage decrease, stuck on white apple, etc. all these charging problems, you need to check iPhone 7 plus charging part.
Check iPhone schematic diagram on WUXINJI Dongle, 5V charge voltage PP5V0_USB sent by the tail-plug interface，one circuit is sent to iPhone charge IC, one circuit is sent to
iPhone USB control IC. The repair method is as follows.
Disassemble the iPhone 7 Plus with phone disassemble kits, remove the iPhone motherboard.
Measure the 5.0V voltage (PP5V0_USB) next
to the iPhone charging IC with
Fluke 15B+ Digital
Multimeter to check whether it exists. If not, then
you need to replace the new iPhone tail plug flex cable. If yes, continue to
check.
Measure the 5.0V voltage (PP5V0_USB) next to
the iPhone USB control IC with
multimeter to check whether it exists. If not, then you need to use QUICK 861DW hot air rework station to solder the jump
wire from 5.0V voltage (PP5V0_USB) next to the iPhone charging IC to 5.0V
voltage (PP5V0_USB) next to the iPhone USB control IC. If 5V is exist， then you need to replace the iPhone USB control IC and iPhone
charge IC.
More cell phone repair tutorial, please contact us on www.vipfixphone.com
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