[Guide] How to Unlock Nokia 2.1 Bootloader

Here is a complete step by step guide on How to Unlock Nokia 2.1 Bootloader using a service bootloader file.

Nokia 2.1 might not be the best value for money android device out there but there are still users who have bought this device. Fortunately, the owners of this device can unlock its bootloader thanks to the efforts of XDA senior member hikari_calyx. The procedure requires you to flash service bootloader file available via a firmware download link. So, if you are confident enough to try this procedure, here is How to Unlock Nokia 2.1 Bootloader.

How to Unlock Nokia 2.1 Bootloader

Pre-requisites

• Nokia 2.1 service bootloader file ( Download E2M-0390-0-00WW-B02 for devices below the Android pie. If you’re using Android 9, download E2M-108C-0-00WW-B01.)
• Minimal adb

Steps:

1. Enable developer options on your device.
2. Extract adb folder on your pc and navigate to that folder.
3. Note your device serial number in settings.
4. Go to MD5HashGenerator.
5. Enter your serial number in the box and generate the hash code.
6. You will get a MD5 hash code like this: 76abc0a1b0b955814a7e80c427179218. Note it.
7. Extract E2M-0-0390-00WW-1-2-emmc_appsboot_service.zip to get service bootloader file. [Password: “WLBGFIH123”.]
8. Type:

   adb reboot bootloader

9. Now type:

   fastboot oem dm-verity [MD5 hash code]

10. Now flash service bootloader using the following commands.

    fastboot flash aboot /path/to/E2M-0-0390-00WW-1-2-emmc_appsboot_service.mbn
    fastboot reboot-bootloader

11. Your phone will reboot to service bootloader.
12. Now give unlock permission by typing:

    fastboot oem dm-verity [MD5 hash code]
    fastboot oem fih on
    fastboot oem devlock allow_unlock

13. Now unlock the bootloader by typing:

    fastboot oem flashing unlock_critical

14. When your phone is erasing userdata, type:

    fastboot oem alive
    (wait for triggering to download mode)
    fastboot oem dm-verity [MD5 hash code]
    fastboot oem fih on
    fastboot oem devlock allow_unlock
    fastboot oem unlock-go

Congratulations! You have successfully unlocked Nokia 2.1 bootloader. Happy exploring the world of ROMs, mods and other fun stuff.