Released September 16, 2016. Models A1661, A1784, and A1785. Available in 32, 128, or 256 GB configurations in Rose gold, gold, silver, black, jet black, and (Product)Red.

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iPhone 7 Plus - Front Camera + Proximity Sensor causing malfunctioning

I did a iphone 7 plus screen replacement today & for some reason the phone starts to malfunction everytime I have the Front Camera + Prox Sensor ribbon cable attached. When attached the phone lags, the home button does not work - it shows the accessibilty icon to use as a home button, and the phone acts very weird.

At first I thought it was the replacement screen but I replaced all the part on the original screen that was cracked & I am getting the same issues.

When I disconnect ONLY the Front Camera + Prox sensor Ribbon cable, leaving the two other ribbon cables connected the phone functions perfectly fine. Home button works again, screen is 100% responsive with no lag at all. The phone works perfect.

The issues only occur when I have front camera + prox sensor connected.

I tried the original screen that was cracked & two other replacement screens. All get the same results as I just listed.

As long as the front camera + prox sensor isnt connected the phone functions perfectly, cant find a problem.

Does anyone have a solution to this? Unfortunetley I was unable to try a new proximity sensor + front camera because I did not have any on me.

Has anyone else experienced this problem?

I have searched the web but cannot find a solution.

I disconnected the battery before I removed all 3 ribbon cables, as I do with every repair.

Help would be greatly appreciated ! =D

Answer this question I have this problem too

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Try to use new Flex.. new front camera flex


I have used a new flex for this same issue. Sometimes it resolves it but not every time. Hope trying the flex works for you!


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Try new front camera flex

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I will give that a try! thanks.


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I found the fix!

So I figured out that I was NOT connecting the proximity/front camera ribbon cable fully. It was 75% connected. I kept disconnecting then reconnecting the ribbon cable..Then finally I gave it one final press & I felt the ribbon cable click into place. Fixed!

I was mostly confused on how the phone was reacting with the proximity/front camera cable partially connected. When it was partially connected - the phone would malfunction. It did not recognize the home button which automatically put on assisstive touch. Then the screen would have tremendous lag when switching through panels.

All in all, make sure that proximity/front camera ribbon CLICKS into place! It may look as if the cable is flat, connected but the right side was not fully connected.

I did not even need to use the new replacement proximity/front camera.

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very good.

Always share the solution with us.

I had almost the same issue yesterday.

I couldnt start my iPhone 7 Plus, it kept on Apple Logo and didnt boot all the time.

Then I saw the dock-connector flex cable wasnt fully plugged on logicboard, when I removed it, it started.

Then I put it back again (correctly this time) and it started and worked fine.


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