The first model of iPhone, Model A1203 with 4, 8, or 16 GB capacity and an aluminum back. Repair requires a significant amount of prying, and may require some soldering.

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Display problems after replacing screen

I recently replaced the LCD/digitizer in my 1st gen iPhone. The repair went smoothly, and I reassembled the case. When I turned it on, the screen flashed random colored lines.

The backlight was lighting up, but a clear image would not display. I proceeded to take the case off the back, and try and power it up disassembled, and the screen worked fine. As soon as I put the case on, however, the gibberish resumes.

I have checked and rechecked the display ribbon cable and its connector, and both seem to be fine. Also, if I bump the phone hard from the side while the phone is apart and the screen working fine, it will lose the signal and go back to the random lines.

I tried restoring the software, and it seems there is no problem. The computer recognizes and syncs with the phone, and the touch screen works fine when the image is clear.

Is this a problem with the ribbon cable? Anyone have any experience or ideas?

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Chosen Solution

It is possible the part you bought is at fault. Try putting old display back in and see if it still works.

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