flashed c902,blue screen after unlocking

while reapiring a c902 whitch used to hang with please wait screen after writing gdfs file the set showed incorrect sim so i had to unlock it after unlocking the set starts with a bleu screen and turns off after somtime. i hve tryed sevreal gdfs file but problem remains same


regards

Flash Main, File System (FS) and CDA or try update via SEUS.

check the phone without memory card and post result

for c510 what are i doing?please help