OK, you changed the display and installed the original home button and Touch ID doesn’t work: then this helped me:
first check that all home button connectors (right at the button and where it connects to the mainboard) are clean, set up properly and have a good connection.
If the problem still exists:
grab your old display and take off the metal shield from the back. 6 or 7 little screws, not too complicated. Take note which screws in which order you replaced to get it off. It has a home button ribbon cable glued to the inside of the shield.
Open your phone one more time, take the display off, exchange the metal plate with the glued-on cable from your original broken display, assemble everything back together: and there you go, good change Touch ID it will work again.
Just be very careful when assembling and disassembling, to not bend the cable too much or stretch it etc, use a good fixation as described in the tutorials.
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This may be a dumb question but was the phone powered off and battery unplugged when you plugged in the front display cables?
If not you will need to turn the phone off and on and try the TouchID again.
Otherwise you probably either have a damaged home button ribbon connector / home button extension cable (the one that comes on the metal back plate to sit behind the screen assembly) or you are using a different home button and not the original one that is linked to the logic board.
Ben tarafından
The iPad deactivates the Touch ID Function permanently even for the original Home Button "maried" to it if you only one time connect another or no Home Hutton an swtich it on.
Alsways connect the original Home Button to the Display Assembly and then connect the Display Assambly an then Switch the iPad on otherwise the Touch ID fundtion is gone for no good reason eccept to pester and annoy you.
This sabotage bevahiour has no protective justification. It is possible to replace broken wires on the Touch ID Home button with the Touch ID still working means it is possible to Tinker atnd lissen to the cummunication over those wires to try to reengineer the security function without the device noticing it so disabeling the Touch ID function isn't protecting anything.
Mini SAP tarafından
From my place it seems to be that if the screen is an 'after market' one. (i.e. non apple). then it comes with some firmware whcih isnt compatible with the apple firmware button. the new screen firmware is identified and blocked by apple. Try a full restore and if a full restore is prevented by iTunes because it doesnt recognise your phone then this is most likely the answer.
jay grand tarafından
If the replacement screen is not an original Apple screen then the touch id will not work. You must replace the after market button with the original apple button from your old screen and even then it may not work. You must swap the buttons over before the replacement screen is connected to the phone. If you want the touch id to have a chance at working don't connect the replacement screen before the button is changed over.
Paul Ingarfield tarafından
Ok I did all that and it still does not work! I read that there are defects in the ribbon that connects to the home button , which runs under the las plate!
mgraham2 tarafından
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