Chosen Solution

How do I fix my iPhone5s that is in a boot loop and then goes to a red screen and then goes back to the apple logo and it has to be plugged in to event turn on

Could be many things, can be caused by: Bad front camera assembly, perhaps cable got torn after drop, if unplugging cable lets the phone boot that is the caseBad Tristar / charging chip, can happen can be confirmed if apple logo does not appear with charger plugged in and battery unplugged. Will require someone with micro-soldering experience to replace chip on board.Corrupt Firmware / Software restore will fix thisBad CPU / NAND / Baseband = Unfixable pretty much.

Has the screen been replaced? This could be something like ‘‘Long Screw Damage’’ Try to put it in recovery mode and update it, it might give you an error code that gives you some clue. Also, what is the history? what’s happened for the device to be in the condition it is in?