GT-s3770 restart solution 100% good solution

select pit files

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