ipod touch 3rd gen replaced screen now whitescreen

i recently replaced a screen and digitizer on 3RD GEN ipod touch 32gb when i go to charge it it would show the apple logo then go to a white screen . i hooked it to itunes after getting it to go into recovery mode and restored it back to factory but it still would only do the apple logo then white screen . I tried again and now it wont charge but on occasion will show charging indicator ( battery with lightning bolt but no charge) or apple logo over and over again or stays at apple logo for 5 minutes before turning off and repeating please help