Hi there,

i have the same problem. When im trying to start my K750i it still appears "please wait". few times ago i used a gdfs file from an another phone (same model). Can someone help me to solve the problem.?

regards,

Get SE Tool cracked and unlock the phone. Should work.
It's possible that you've got to a fullflash afterwards (MAIN, FS, custpack)

if u have a back-up of the oringal gdfs then flash it to the phone, otherwise u need a service cable and semctool u need to write ur old imei number to the new gdfs and unlock it.