Utility to disable signature verification / unlock bootloader Lenovo K900.
Unlocking is possible only on firmware Android 4.3 (preferably the latest 1418-1419 and flashed using MFT). On already installed firmwares Android 4.2.2 or Android 4.2.1 unlock is impossible. If you have a installed firmware Android 4.2.2, you can make a nandroid backup, flash VibeROM 1418-1419 using MFT, do unlock and recover with the help of a custom nandroid recovery. If you are on Android 4.2.1 (ROW), you can try to do the same thing as with 4.2.2, but there is no guarantee that the firmware will start. If you are flashing the firmware via inb (only for Android 4.3), of a custom recovery, or via OTA update unlock remains.
Instructions for unlocking:
- Install adb / fastboot drivers for the device;
- Connect the phone via data cable to the PC;
- From the phone settings include "debugging USB";
- Run the utility and wait for its implementation. The phone will automatically restart in droidboot.