How to Restore Touch ID of iPhone Due to Home Button Flex Broken

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<p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">iPhone users might be in despair when their iPhone home button touch ID gets into trouble or even doesn&#39;t work&nbsp;after replaced home button. Why? For iPhone 6 and&nbsp;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. For a long time, it is a sticky business for repair technicians to repair the iPhone touch ID issue, but actually, about 80% of&nbsp;the touch ID failures are resulted by damaged home button touch ID flex.&nbsp;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.&nbsp;</span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br/></span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"></span></p><p style="text-align: center"><img src="/../../../../media/file24511523931220.jpg" width="650" height="380" title="How to Restore Touch ID of iPhone Due to Home Button Flex Broken"/></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br/></span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">There are the detail steps with pictures teach you <strong>how to fix iPhone 6 touch ID home button flex broken.</strong><br/></span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Restore iPhone Touch ID With Home Button Flex Reparing<br/></span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Power on and test. “Unable to activate Touch ID on this iPhone”. Press Home Button, the returning function is normal.</span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br/></span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"></span></p><p style="text-align: center"><img src="/../../../../media/file45001523931362.jpg" width="650" height="380" title="How to Restore Touch ID of iPhone Due to Home Button Flex Broken"/></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br/></span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Disassemble the phone and remove the display assembly. First of all, check the logic board connector J2118 for mouldy condition and dry Joint. Everything is fine.</span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br/></span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"></span></p><p style="text-align: center"><img src="/../../../../media/file55081523931392.jpg" width="650" height="380" title="How to Restore Touch ID of iPhone Due to Home Button Flex Broken"/></p><p><span style="text-align: justify; font-size: 16px; font-family: arial, helvetica, sans-serif;"><br/></span></p><p><span style="text-align: justify; font-size: 16px; font-family: arial, helvetica, sans-serif;">Then, measure the resistance between J2118 and grounding. The value is also normal.</span></p><p><span style="text-align: justify; font-size: 16px; font-family: arial, helvetica, sans-serif;"><br/></span></p><p><span style="text-align: justify; font-size: 16px; font-family: arial, helvetica, sans-serif;"></span></p><p style="text-align: center"><img src="/../../../../media/file51491523931432.jpg" width="650" height="380" title="How to Restore Touch ID of iPhone Due to Home Button Flex Broken"/></p><p><span style="text-align: justify; font-size: 16px; font-family: arial, helvetica, sans-serif;"><br/></span></p><p><span style="text-align: justify; font-size: 16px; font-family: arial, helvetica, sans-serif;">Take down the Home Touch Sensor Assembly and check the home button flex cable. There are obvious broken traces on the flex cable.</span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">&nbsp;</span></p><p style="text-align: center"><img src="/../../../../media/file79021523931465.jpg" width="650" height="380" title="How to Restore Touch ID of iPhone Due to Home Button Flex Broken"/></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br/></span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Preliminary judgment – Touch ID malfunction is caused by fractured flex cable circuit. We can fix the problem by replacing the fractured section with a new length of flex cable.</span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Pry up the back plate with Tweezer and Soldering Iron. Cut the fractured part from the flex cable with Sculpture Knife.</span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br/></span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"></span></p><p style="text-align: center"><img src="/../../../../media/file97381523931489.jpg" width="650" height="380" title="How to Restore Touch ID of iPhone Due to Home Button Flex Broken"/></p><p style="text-align: justify;"><br/></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Scrape out the flex cable circuit. Be careful not to cut the circuit off.</span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">&nbsp;</span></p><p style="text-align: center"><img src="/../../../../media/file13541523931519.jpg" width="650" height="380" title="How to Restore Touch ID of iPhone Due to Home Button Flex Broken"/></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br/></span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Apply some BGA paste flux to the flex cable and then solder tins with Soldering Iron. Clean with PCB Cleaner after cooling.</span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">&nbsp;</span></p><p style="text-align: center"><img src="/../../../../media/file81841523931560.jpg" width="650" height="380" title="How to Restore Touch ID of iPhone Due to Home Button Flex Broken"/></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br/></span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Prepare a new Home Touch Sensor Assembly.</span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">&nbsp;</span></p><p style="text-align: center"><img src="/../../../../media/file28251523931579.jpg" width="650" height="380" title="How to Restore Touch ID of iPhone Due to Home Button Flex Broken"/></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br/></span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Pry up the back plate of the new Home Touch Sensor Assembly. Cut a length of flex cable from the new Home Touch Sensor Assembly (allow for some adjustment in length of the cut cable).</span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">&nbsp;</span></p><p style="text-align: center"><img src="/../../../../media/file73711523931606.jpg" width="650" height="380" title="How to Restore Touch ID of iPhone Due to Home Button Flex Broken"/></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br/></span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Fix the newly cut cable with double-sided adhesive. Then, scrape out the newly cut flex cable circuit. Be careful not to cut the circuit off.</span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">&nbsp;</span></p><p style="text-align: center"><img src="/../../../../media/file78101523931626.jpg" width="650" height="380" title="How to Restore Touch ID of iPhone Due to Home Button Flex Broken"/></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br/></span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Apply some BGA paste flux to the newly cut flex cable. Then solder tins with Soldering Iron. Clean with PCB Cleaner after cooling.</span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br/></span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"></span></p><p style="text-align: center"><img src="/../../../../media/file4281523931648.jpg" width="650" height="380" title="How to Restore Touch ID of iPhone Due to Home Button Flex Broken"/></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">&nbsp;<br/></span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Cut out the excess parts of the newly cut flex cable. After that, apply 460 Glue to the bonding part and adhere the two cables carefully. Pay attention to the aligning position.</span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">&nbsp;</span></p><p style="text-align: center"><img src="/../../../../media/file79021523931668.jpg" width="650" height="380" title="How to Restore Touch ID of iPhone Due to Home Button Flex Broken"/></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br/></span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Once cables are fixed, apply some BGA paste flux and solder flex cables with Soldering Iron. Be careful with bridging and disturbed solder condition.</span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">&nbsp;</span></p><p style="text-align: center"><img src="/../../../../media/file22801523931697.jpg" width="650" height="380" title="How to Restore Touch ID of iPhone Due to Home Button Flex Broken"/></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br/></span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Clean with PCB Cleaner after cooling. Remember to check the circuit for bridging and disturbed solder.</span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">&nbsp;</span></p><p style="text-align: center"><img src="/../../../../media/file27191523931728.jpg" width="650" height="380" title="How to Restore Touch ID of iPhone Due to Home Button Flex Broken"/></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br/></span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Get the Home Touch Sensor Assembly mounted on the screen. Then buckle the display assembly to the logic board.</span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">&nbsp;</span></p><p style="text-align: center"><img src="/../../../../media/file67771523931747.jpg" width="650" height="380" title="How to Restore Touch ID of iPhone Due to Home Button Flex Broken"/></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br/></span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Power on and run Touch ID function test. Touch ID back to normal.</span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">&nbsp;</span></p><p style="text-align: center"><img src="/../../../../media/file10481523931761.jpg" width="650" height="380" title="How to Restore Touch ID of iPhone Due to Home Button Flex Broken"/></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br/></span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Take down the display assembly after test and take out the Home Touch Sensor Assembly. Prepare another length of cable. And then adhere the cable to the previous bonding part.</span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">&nbsp;</span></p><p style="text-align: center"><img src="/../../../../media/file67361523931779.jpg" width="650" height="380" title="How to Restore Touch ID of iPhone Due to Home Button Flex Broken"/></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br/></span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">To further secure flex cables, solder with Soldering Iron. And then secure the back plate with Glue carefully.</span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">&nbsp;</span></p><p style="text-align: center"><img src="/../../../../media/file19571523931798.jpg" width="650" height="380" title="How to Restore Touch ID of iPhone Due to Home Button Flex Broken"/></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br/></span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Get the Home Touch Sensor Assembly mounted on the screen. Buckle the display assembly to the logic board. After that, power on and test. The phone works with normal Touch ID function.</span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">&nbsp;</span></p><p style="text-align: center"><img src="/../../../../media/file48171523931819.jpg" width="650" height="380" title="How to Restore Touch ID of iPhone Due to Home Button Flex Broken"/></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br/></span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">For more details on restore iPhone Touch ID with Home Button flex repairing, please go to&nbsp;</span><a href="https://www.youtube.com/channel/UC3ByF8DcZ3yxUs7VP1NOuyA" style="text-decoration: underline; color: rgb(255, 192, 0); font-size: 16px; font-family: arial, helvetica, sans-serif;" rel="nofollow"><span style="color: rgb(255, 192, 0); font-size: 16px; font-family: arial, helvetica, sans-serif;">REWA YouTube channel</span></a><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">.</span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">You can view more professional and featured iPhone repair guide on <a href="http://blog.rewatechnology.com/" target="_blank" title="REWA Blog" style="color: rgb(255, 192, 0); text-decoration: underline;"><span style="font-size: 18px; font-family: arial, helvetica, sans-serif; color: rgb(255, 192, 0);">REWA Blog</span></a>.</span></p><p style="text-align: justify;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Order Now:</span></p><p style="text-align: justify;"><a href="https://www.rewatechnology.com/integrated-mobile-phone-repair-platform-blue-12599.html" target="_self" style="text-decoration: underline; font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Intergrated Mobile Phone Repair Platform</span></a></p><p style="text-align: justify;"><a href="https://www.rewatechnology.com/digital-soldering-iron-rework-station-10929.html" target="_self" style="text-decoration: underline; font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Digital Soldering Iron Rework Station</span></a></p><p style="text-align: justify;"><a href="https://www.rewatechnology.com/4x-optical-microscope-type-1-10860.html" target="_self" style="text-decoration: underline; font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">4X Optical Microscope -type 1&nbsp;</span></a></p><p style="text-align: justify;"><a href="https://www.rewatechnology.com/sculpture-knife-type-1-10831.html" target="_self" style="text-decoration: underline; font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Sculpture Knife</span></a></p><p style="text-align: justify;"><a href="https://www.rewatechnology.com/straight-tweezer-type-3-13483.html" target="_self" style="text-decoration: underline; font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Straigt Tweezer -type 3</span></a></p><p style="text-align: justify;"><a href="https://www.rewatechnology.com/apple-iphone-6-home-button-with-flex-cable-assembly-black-1369.html" target="_self" style="text-decoration: underline; font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Apple iPhone 6 Home Button With Flex Assembly - Black</span></a></p><p style="text-align: justify;"><a href="https://www.rewatechnology.com/e-catalog/search/solder%20wire" target="_self" style="text-decoration: underline; font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Solder Wire</span></a></p><p><br/></p>