How to repair IMEI, BT, PIN ... with bb:.
Run MML for erace old firmware and upload bootloader
Select autostart.
Wait end procedure.
Run BlackBerry Tool
1. Connect phone to USB and read info.
2. Go to ID input option.
3. Input new IMEI and press write.
4. Update phone firmware.
Now disconnect phone and restart.
Operation done.
Note.
All operation use in computer without internet connection.