[Kidderminster]

I recently bought an Ipod touch clone (2.8" screen) from an Ebay seller. It worked to start with, but now it
is locked to the 'Welcome-Loading' screen. It wont power up unless connected to a computer with a USB cable. I've removed the cover and have tried using tweezers to jump the pins on the chips, with no success. I'm stuck as to how to resolve the problem. I bought two identical players at the same time from the same seller. There are no issues with either of those players. Could anyone please suggest as to how I might achieve a solution? The only information I can obtain is as follows:
LARGE SQUARE CHIP=ATJ2237T
2AA2XAC 51B

1st RECTANGULAR CHIP=HYNIX
H27UAG8T2MTR
BC 003F

3RD RECTANGULAR CHIP=HYUNDAI KOREA

I can't establish a reference for the board, even though I have unscrewed it and looked underneath. Any help would be appreciated.