Ipad 2 only turns on when plugged to wall outlet
My ipad 2 for work has spoilt. It only turns on when plugged to wall outlet, not even on PC USB. After it turns on, it will restart once passcode is entered. Battery shown is 100% so i doubt is the battery being discharged for extended periods of time.
I tried to restore it in iTunes after putting it into DFU mode, but it is stuck at "Waiting for iPad", then gives out a error 4003.
Urgently need help, this iPad 2 and its data is very important for my livehood. I can't afford to replace it with a new one due to my dire financial situation I'm facing. Thank you for your help.
iPad 2