click start
press volume up + lock key in switch off handset
give drivers
set will flash
all done
very good solution password is manjula
http://www.4shared.com/rar/WerQwnapce/Flash_loader_753_CSC_v04_Lite.html
http://www.4shared.com/rar/Qh2yH27Hce/c3770_flash_file.html
