Factory reset, or reset user data quick and easy, no need to flash:
Connect the phone using any universal f-bus cable
Use b+, bsi, gnd from universal f-bus instead of using battery or external power supply
Next connect phone directly to PC USB... then power on the phone
Phone will show 'testmode' on screen
Drivers will install ok
Use Mt-box, Mx-key, Cyclone, etc, etc to make reset in USB mode
Connect the phone using any universal f-bus cable
Use b+, bsi, gnd from universal f-bus instead of using battery or external power supply
Next connect phone directly to PC USB... then power on the phone
Phone will show 'testmode' on screen
Drivers will install ok
Use Mt-box, Mx-key, Cyclone, etc, etc to make reset in USB mode