.
Instructions for installing firmware RUU_Mozart_TMO_DE_1.09
1. Enter the bootloader mode (turn off the phone, hold down the "Volume Down" key, turn on the phone);
2. Connect the phone to the PC;
3. Unpack the archive with the firmware, run ROMUpdateUtility.exe;
4. Confirm what we want to do, we sew;
5. In the end, we get an error message, do not get scared, do not touch anything;
Now you can flash any firmware you need.