Fourth generation iPhone. Repair is straightforward, but the front glass and LCD must be replaced as a unit. GSM / 8, 16, or 32 GB capacity / Model A1332 / Black and White.

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After proximity sensory cable change bottom of screen is buggy

My power button got stuck so I recently changed the Power and Sensore cable part with a new one - button fixed :)

However, whilst fixing one thing I have created 3 new issues.

1. Proximity sensory doesnt work (not a big issue I think the filter may have fallen off during repair)

2. Phone no longer vibrates

3. The most serious and weirdest: The bottom half an inch of the display does not respond to touch in certain conditions. For example, I cannot end a call - the end call button does not respond to me touching the screen. However the screen responds in the same area when I swipe to unlock or typing a message. In the settings menu, I cant press the bottom options in the list - screen just doesnt respond. The rest of the screen is fine

During the rebuild after the repair one screw would not go back in. I was very careful to ensure I didnt mix up screws. The screw is the 1.44mm one in Step 13 of the tutorial:

iPhone 4 Power & Sensor Cable Replacement

Also the 2.3mm red one seemed to not go in fully - as if it was too long or something. Very weird. Defo the right screw!

Any ideas

Answered! View the answer I have this problem too

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Your first issue is probably the old proximity sensor has a small lens that is on top of the sensor itself, you have to transfer it from the old sensor to the new one.

Your second issue is probably as simple as the prongs are not lined up correctly.

And third and last, you probably damaged the glass digitizer during your repair. You will need to replace your glass/LCD.

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jinn will be eternally grateful.
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