What to do? HTC One M8 screen flickering and no sim card?

A

AC Question

I picked my phone up this morning after i woke up to use it, and it wasn't working. The screen wouldn't come on every time i tried, and it would flicker weird colours and turn off randomly. Also my phone says "No SIM Card". So i tried to eject the sim card tray with a safety clip, but the tray does not come out. The safety pin can literally go too far in and I don't want to push any further.

I recently dropped it about a month ago but had the screen replaced. The guys who did it ****ed up the first time as the screen didn't work. But this time it seemed they fixed it properly. Any ideas on what I can do or some troubleshooting? Thanks.
 

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