I've repaired over 200 iPhone 6 screens since the beginning of the year. I still contend that the front camera/front mic/proximity sensor flex cable is extremely fragile and that extremely slight bends, pressure, etc. will damage it. The main part of the cable that sits directly under the ear speaker (when installed) is very stiff and I believe that the copper wires inside really don't want to be tweaked in the slightest. The best method I've found to remove it and not damage it is to use an iSesamo tool (because it's the thinnest) and insert it under the main part of the cable. Position the tool so that it's corner matches the corner of the flex cable (see photo). Then place the finger of your free hand on top of the flex cable and hold firmly while you very gently, pry straight up with the iSesamo. Your finger will help keep the cable from bending while you pry up. The goal is to lift the proximity sensor out of it's hold and then go back and pry the hold off separately. This is different than a 5/S/C where you can pry in a way that keeps the hold attached to the proximity sensor when you remove it. The new problem I have run into with the iPhone 6 is that apparently the front mic can test just fine immediately after the repair and a few days later it stops working. Replacing the flex cable fixes it immediately. I'm not really sure what causes this to happen but I'm trying to be even more careful when removing this flex cable
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I've repaired over 200 iPhone 6 screens since the beginning of the year. I still contend that the front camera/front mic/proximity sensor flex cable is extremely fragile and that extremely slight bends, pressure, etc. will damage it. The main part of the cable that sits directly under the ear speaker (when installed) is very stiff and I believe that the copper wires inside really don't want to be tweaked in the slightest. The best method I've found to remove it and not damage it is to use an iSesamo tool (because it's the thinnest) and insert it under the main part of the cable. Position the tool so that it's corner matches the corner of the flex cable (see photo). Then place the finger of your free hand on top of the flex cable and hold firmly while you very gently, pry straight up with the iSesamo. Your finger will help keep the cable from bending while you pry up. The goal is to lift the proximity sensor out of it's hold and then go back and pry the hold off separately. This is different than a 5/S/C where you can pry in a way that keeps the hold attached to the proximity sensor when you remove it. The new problem I have run into with the iPhone 6 is that apparently the front mic can test just fine immediately after the repair and a few days later it stops working. Replacing the flex cable fixes it immediately. I'm not really sure what causes this to happen but I'm trying to be even more careful when removing this flex cable.
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* I (think) I uploaded the photos but it doesn't seem like they are posting.
I don't think it's the screen. I've had this issue as well. I've tested the non-working proximity sensor by reinstalling it in the original screen that it came with (which tested as working fine before starting the repair) and the proximity sensor does not work in the original screen. Using the same replacement screen, a new proximity sensor flex cable fixes the problem. This flex cable seems extremely fragile. It's almost impossible not to damage it and I'm not sure what does cause damage. I'm holding my breathe and being extra extra careful with each one but I've damaged 3 in the last week. No signs of tears, not even a bend in the cable. It doesn't help that all the suppliers are out of stock of this part and it's Chinese New Year. I've also found the main home button flex cable is also extremely fragile and very difficult to not damage. I've seen this cause problems with the touch ID not working as well as the very odd affect of not being able to swipe to unlock. Both issues clear up when replacing the flex cable (this is the cable that runs the length of the LCD under the plate and plugs into the circuit board.
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I've repaired over 200 iPhone 6 screens since the beginning of the year. I still contend that the front camera/front mic/proximity sensor flex cable is extremely fragile and that extremely slight bends, pressure, etc. will damage it. The main part of the cable that sits directly under the ear speaker (when installed) is very stiff and I believe that the copper wires inside really don't want to be tweaked in the slightest. The best method I've found to remove it and not damage it is to use an iSesamo tool (because it's the thinnest) and insert it under the main part of the cable. Position the tool so that it's corner matches the corner of the flex cable (see photo). Then place the finger of your free hand on top of the flex cable and hold firmly while you very gently, pry straight up with the iSesamo. Your finger will help keep the cable from bending while you pry up. The goal is to lift the proximity sensor out of it's hold and then go back and pry the hold off separately. This is different than a 5/S/C where you can pry in a way that keeps the hold attached to the proximity sensor when you remove it. The new problem I have run into with the iPhone 6 is that apparently the front mic can test just fine immediately after the repair and a few days later it stops working. Replacing the flex cable fixes it immediately. I'm not really sure what causes this to happen but I'm trying to be even more careful when removing this flex cable
I don't think it's the screen. I've had this issue as well. I've tested the non-working proximity sensor by reinstalling it in the original screen that it came with (which tested as working fine before starting the repair) and the proximity sensor does not work in the original screen. Using the same replacement screen, a new proximity sensor flex cable fixes the problem. This flex cable seems extremely fragile. It's almost impossible not to damage it and I'm not sure what does cause damage. I'm holding my breathe and being extra extra careful with each one but I've damaged 3 in the last week. No signs of tears, not even a bend in the cable. It doesn't help that all the suppliers are out of stock of this part and it's Chinese New Year. I've also found the main home button flex cable is also extremely fragile and very difficult to not damage. I've seen this cause problems with the touch ID not working as well as the very odd affect of not being able to swipe to unlock. Both issues clear up when replacing the flex cable (this is the cable that runs the length of the LCD under the plate and plugs into the circuit board.