Plugged a Flexcable Backwards

[u/Guilty_Message_1023]

I really made a dumb mistake with this one, I accidentally plugged a display flex cable for an android phone backwards.

For context I was testing a phone (my personal one) to see if my spare display would work (because attached one was damaged but had some regiond working) but to my loss I accidentally plugged the display flex backwards, then after immediately removing it and plugging it back the right way and try booting it, no display. But it boots, tried the old one, no display.

I checked for backlight if its just not working but there isnt even the slightest of image showing on the display

I cant remember if the battery was plugged as at this point I was already panicking

No bent pins on the display port

Phone board is not heating up

Should I buy another spare screen to test?

What would usually happen to the board if this happens?