After replacing the battery, the screen went blank.
I followed the guide(Google Pixel 6a Battery Replacement) to replace the battery on my Pixel 6A.
When I pressed the power button, I felt a slightly loud vibration (maybe because Android was starting up).
However, nothing was displayed on the screen, and when I pressed the power button after that, there was only a small vibration.
One thing that bothers me is that when removing the display, the flex cable was scratched, causing copper powder to form.
It was a small scratch so I didn't think it would have any effect.
Will replacing the display solve the problem?
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Today I confirmed that the alarm I had set before changing the battery was still ringing.
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I ordered an OLED display, although it will take some time to deliver.
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It worked after I replaced the display.
It seems the problem was caused by a broken display flex cable.
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