I’ve received a Xiaomi Mi 9T for screen repair, I’ve a spare screen and back for the phone, the screen comes together with the frame, I’ve moved everything to the new frame with the new screen and connected it all, once I tried to power on the phone nothing would show on the screen and the front camera (pop-up) which has a small dot on the side starts blinking red. The phone has been connected to the charger for about 10 minutes now, and no charging logo appeared. I’ve tried holding the power button, and volume buttons to see it I achieve any response at all but nothing. Any idea what can be the problem? I’ve never encountered this before. Thanks in advance!
Here’s how it looks.