Best fix failed home button and fingerprint on iPhone 7/7P

How to best fix failed iPhone 7/ 7P home button and fingerprint? There are many solutions on the network, what is best? It's hard to said, different reasons has different solutions, now we will share some solutions to fix these problems quickly and correctly. By the way, there are some phone repair tools will help you a lot.

Some tools are necessity

WUXINJI Dongle

cell phone opening tools

multimeter

tweezers

hot air rework staion

iPhone chips

Now, the fix begins.

Firstly, open the Open the WUXINJI Dongle to check iPhone 7/7P schematic diagram, with this step, we can know the iPhone 7/7P home button and fingerprint circuit diagram.

After checking iPhone schematic diagram, we know that some damaged power supply circuit diagram can cause these problems. so we need to check the FL3803, FL3801 FL3802 and R3800 short connection to confirm them whether they working well, and then replace the U3702 and U3801 by using Precision Titanium Tweezers.

If you don't replace it, you can re-weld the short connection between them.