cannot lock bootloader

  1. Nick0669
    Donut Sep 23, 2019

    Nick0669 , Sep 23, 2019 :
    I recently switched back from Lineage os 16 to Oxygen OS 9.0.5.
    I am currently not able to lock the bootloader.
    After typing "fastboot oem lock", the phone shows two options. When I select Relock bootloader, the phone just boots back to the system. I'm using OnePlus 3T


  2. Paschfire
    KitKat Sep 23, 2019

    Paschfire , Sep 23, 2019 :
    Try sending the "fastboot oem unlock" command first, then the "fastboot oem lock". There seem to be some sort of bug, doing the process in reverse has been reported to work for other users.

    zeetheali likes this.