After that, apply 460 Glue to the bonding part and adhere the two cables carefully. Clean with PCB Cleaner after cooling.Ĭut out the excess parts of the newly cut flex cable. Be careful not to cut the circuit off.Īpply some BGA paste flux to the newly cut flex cable. Then, scrape out the newly cut flex cable circuit. Cut a length of flex cable from the new Home Touch Sensor Assembly (allow for some adjustment in length of the cut cable).įix the newly cut cable with double-sided adhesive. Pry up the back plate of the new Home Touch Sensor Assembly. Prepare a new Home Touch Sensor Assembly. Be careful not to cut the circuit off.Īpply some BGA paste flux to the flex cable and then solder tins with Soldering Iron. Cut the fractured part from the flex cable with Sculpture Knife. Pry up the back plate with Tweezer and Soldering Iron. We can fix the problem by replacing the fractured section with a new length of flex cable. Preliminary judgment – Touch ID malfunction is caused by fractured flex cable circuit. There are obvious broken traces on the flex cable. Take down the Home Touch Sensor Assembly and check the home button flex cable. Then, measure the resistance between J2118 and grounding. First of all, check the logic board connector J2118 for mouldy condition and dry Joint. Press Home Button, the returning function is normal.ĭisassemble the phone and remove the display assembly. “Unable to activate Touch ID on this iPhone”.
Restore iPhone Touch ID With Home Button Flex Reparing There are the detail steps with pictures teach you how to fix iPhone 6 touch ID home button flex broken. REWA therefore released a video about how to restore iPhone 6/6 plus/6s/6s plus home button touch id issue by making a jumper on flex. For a long time, it is a sticky business for repair technicians to repair the iPhone touch ID issue, but actually, about 80% of the touch ID failures are resulted by damaged home button touch ID flex.
Why? For iPhone 6 and later versions, touch ID is bonded with CPU, and the user who has replaced his home button will then lose its touch ID fingerprint function. IPhone users might be in despair when their iPhone home button touch ID gets into trouble or even doesn't work after replaced home button.
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