Attempting dead boot repair is an advanced procedure. It carries risks, including permanent damage if not done correctly. Make sure you have the following:
Reassemble the motherboard back into its plastic housing and tighten the screws. E8372h-153 Dead Boot Repair
After the bootloader is restored, the device might boot up but have no signal or a corrupted OS partition. You must now flash the official firmware. Attempting dead boot repair is an advanced procedure
You will need to download a repair pack containing the following specific files: E8372h-153 Dead Boot Repair