I bought phone in non working condition; it had a loading problems. Tried hard resest but it didn't helped. So I downloaded ROM upgrade from Tmobile website and when I run the program it stucks at 8%. When I turn the phone on it shows triangle with msg 'software update failed' and when I connect it to pc it does not sync with windows mobile device manager. How can I fix this problem? Is there any way how to make complete restore?