Chosen Solution
I followed the instructions on IFIXIT’s site to replace the Pixel 3a’s screen. Everything seemed to work perfectly for a few weeks. Last week, the touch-capability on the screen stopped responding for brief periods. Then it recurred and became more frequent. Now the screen hasn’t responded to touch for almost 24 hours.
Alan Fuhs sounds like a bad digitizer which is not uncommon. You want to try another one and then re-evaluate.
I had this problem with my phone as well. The phone was on when I replaced the screen (I had no way to turn it off). After I replaced the screen, the screen would turn on and it looked fantastic, but it didn’t recognize my touch at all. What I ended up doing is holding down the power button for about 15-20 seconds until the phone restarted. The screen began to function normally after that and recognized my touch.
