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Thread: How to repair not working touch ID in an iPhone 7

  1. #1
    Join Date
    Oct 2016
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    How to repair not working touch ID in an iPhone 7

    Below you will find complete solutuion to the TOUCH ID problem in an iPhone 7:

  2. #2
    Join Date
    Apr 2018
    Feedback Score
    In there, I will teach you to repair your iphone 7 Touch ID or home button not working step by step. Follow me
    1. Turn on the phone, unable to activate its Touch ID.
    2.Go to settings – Touch ID & passcode – enter your passcode, fingerprint is grayed out.
    3.Take down the home button flex cable.
    4.Check the home button flex cable under the microscope, we found that the ribbon cable is broken.

    5.Scrape the coating off the wire on the ribbon cable with knife.

    6.Apply some BGA paste flux and solder the tins with soldering station.

    7.Scrape the coating off the wire on the reverse side.

    8.Apply some BGA paste flux, then solder the tins with soldering station.

    9.Cut the wires then align them correctly, heat it up with hot air gun and weld.

    10.Turn the flex cable to the reverse side, weld it with the wire.

    11.Test if it is short circuit with digital multimeter.

    12.Install the home button and test.

    13.Apply some UV curable solder mast on the wire to fix the welding joint.

    14.Install the LCD screen assembly and test, fingerprint works well.

    About fix iPhone 7 home button, we used the following tools, if you don’t have them, you can check the links and buy them, to become a professional iPhone fixer.

    Check Rewatechnology to get more about the knowledge about cell phone repair.

  3. #3
    Join Date
    Sep 2003
    Bloomington, IN
    iPhone 6S
    Verizon Prepaid
    Feedback Score
    to op, not everyone has the tools you have to repair iPhone. But still good to know how to.

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