I have hauwei Y300-0100. I unlocked Bootloader Of My phone before for root it. Now i want to flash my phone with stock rom but i cant. I tried to lock my phone with fastboot but i gave an error: error I cant solve this problem and i dont have access to phone menu. I have access to TWRP recovery. How can i lock Y300 boot loader? or How can i install stock rom on unblock phone? note:

system and data folders wiped and there is no data in this folders. My phone is freezing between first logo and welcome picture (A block screen)

  • That command is invalid as shown in the picture. I guess you didn't read it anywhere but thought if unlock unlocks the bootloader then lock would lock it. Anyhow, why do you want to lock your bootloader just to flash stock ROM? Can't you use a flashable stock ROM zip from Recovery? Or perhaps a fastboot image from fastboot?
    – Firelord
    Commented Sep 2, 2015 at 11:42
  • I couldnt find flashable stock rom or image :( Commented Sep 2, 2015 at 11:53

1 Answer 1


solved = fastboot oem relock "xxxxxx.." xxxx.. = 16 digital code But if you flashed custom recovery or boot before you cant relock it

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