1. Throws with sd card file with the December update
2. Go to the rekaveri, if that -
here is the instruction. I recommend you do a wipe because the system then still offer.
3. Once logged in rekaveri - click apply update from zip and choose our archive with the December update.
For owners TWRP : The same thing essentially, click install - select - swipe to confirm
4. Wait for Nakata file and fly a mistake. Do not worry, everything is OK.
5. Push reboot to bootloader
6. Open OST, connect the phone to a computer, select the firmware file (the same .nb0), press the button to edit phone iformation
Warning for those who did unlock: window pops up with debazhnymi parameters, just close and do further
7. Once the program protupila 2 minutes and during that time will reset the phone, press the fire on the NEXT button
8. Waiting EEPROM closure process.
9. Wait for the phone does not carry out the first load (will be long). If you did not wipe it up, the phone will write that it is necessary to reset, so do not be alarmed