Old display works, new doesn't

Hi @leojue,

I ran into a similar issue with my grandson's iPhone X. He broke the screen, so I ordered a replacement, which seemed to work when I plugged it in. However, after a few plugging and unplugging cycles caused by trying to reprogram the True Tone data, the screen seemingly stopped displaying. Touch still worked, but I wasn't seeing anything on the display.

So I ordered another replacement screen, and installed it, figuring I'd somehow damaged the first one while messing around with it. However, within a couple of weeks he'd dropped the %#*@ thing yet again and broken the screen. So I went back and tried that first replacement screen and after some fiddling with it, it started working! So I buttoned it up, avoiding any more messing with it than I absolutely had to, and it's still working.

My conclusion here is that there never was anything wrong with the screen, but rather I simply hadn't gotten it plugged in correctly. On the X, the OLED plug is on the lower board, meaning it's sunk into a depression next to the battery and therefore harder to get to than the other connectors.

I'd suggest checking the connectors on both sides carefully, making sure there aren't any bent or broken pins. then retry your connections. Verify that the FPC connector is fully engaged into the board. Some of the longer connectors recommend you start at one end and kind of zip it in as you go.