I was running the GPS app and andriod crashed. Now when I try to restart I get the green mytouch screen and android tries to boot but eventually gives a black screen, I cannot do any thing after that, every time i boot the phone i get the black screen. I use a ATT sim on an Unlocked Tmobile Mytouch/ magic 3g from the USA. Can any one help on how to recover the system back. Thanks for your help.