I have a similar issue. The ipad mini will not charge. It won't even show the charge icon on the screen. I could the charge lowering so the charge was moving but only downwards lol Has anyone any idea of the resistor values? Any help appreciated.

My back light wasn't working, left battery plugged in and flicked off the lcd.....ahhhh I know. Anyway, I replaced the diode and it worked ok when tested initally, then I put it back together and the back light wasn't working again. I test the diode and it is faulty so I replace it and now the screen doesn't come on at all. Any ideas ?