How To Guide Manually update to android 12 with locked bootloader

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wolfaas12345

Senior Member
Jun 1, 2014
282
155
25
Newcastle
**Warning** this will erase your data
So i was poking around moto rescue tool as i wanted android 12 on my moto edge 20 pro which was stuck on 11 and accidentally found a way to update the phone without unlocking the bootloader via swap trick


Firstly download moto rescue tool
Rescue Tool
Then download a android 12 firmware for your moto (find it online)

Boot your phone into fastboot and hook it up to the rescue tool and click rescue it will start downloading the firmware for it it will start downloading android 11 firmware for it

Now you can either go to the default folder where it's downloading the firmware or change it to whichever folder you desire

Now take the 12 firmware you downloaded earlier bring it into the folder where rescue tool was downloading the firmware

Copy the name of temp file thats in the folder

Cancel the download (which will delete temp file)

Close rescue tool

And now take the firmware you downloaded the android 12 one and rename it to the name of that temp file (make sure file ends in zip not temp ignore the temp bit)

Turn on the rescue tool again and click rescue again it will "start downloading the firmware" again but it will actually sit at 0kbps as it reads and extracts the file you placed in and it will start installing it on your phone

wait till its done

Boom you have yourself Android 12 on your Edge 20 Pro
 

markcoopz

Senior Member
Oct 14, 2007
51
3
Moto G Power
**Warning** this will erase your data
So i was poking around moto rescue tool as i wanted android 12 on my moto edge 20 pro which was stuck on 11 and accidentally found a way to update the phone without unlocking the bootloader via swap trick


Firstly download moto rescue tool
Rescue Tool
Then download a android 12 firmware for your moto (find it online)

Boot your phone into fastboot and hook it up to the rescue tool and click rescue it will start downloading the firmware for it it will start downloading android 11 firmware for it

Now you can either go to the default folder where it's downloading the firmware or change it to whichever folder you desire

Now take the 12 firmware you downloaded earlier bring it into the folder where rescue tool was downloading the firmware

Copy the name of temp file thats in the folder

Cancel the download (which will delete temp file)

Close rescue tool

And now take the firmware you downloaded the android 12 one and rename it to the name of that temp file (make sure file ends in zip not temp ignore the temp bit)

Turn on the rescue tool again and click rescue again it will "start downloading the firmware" again but it will actually sit at 0kbps as it reads and extracts the file you placed in and it will start installing it on your phone

wait till its done

Boom you have yourself Android 12 on your Edge 20 Pro
Hi, quick question, after doing this do you still get OTA updates or do you have to do them manually ??
 

Feilau

Member
May 21, 2019
6
0
**Warning** this will erase your data
So i was poking around moto rescue tool as i wanted android 12 on my moto edge 20 pro which was stuck on 11 and accidentally found a way to update the phone without unlocking the bootloader via swap trick


Firstly download moto rescue tool
Rescue Tool
Then download a android 12 firmware for your moto (find it online)

Boot your phone into fastboot and hook it up to the rescue tool and click rescue it will start downloading the firmware for it it will start downloading android 11 firmware for it

Now you can either go to the default folder where it's downloading the firmware or change it to whichever folder you desire

Now take the 12 firmware you downloaded earlier bring it into the folder where rescue tool was downloading the firmware

Copy the name of temp file thats in the folder

Cancel the download (which will delete temp file)

Close rescue tool

And now take the firmware you downloaded the android 12 one and rename it to the name of that temp file (make sure file ends in zip not temp ignore the temp bit)

Turn on the rescue tool again and click rescue again it will "start downloading the firmware" again but it will actually sit at 0kbps as it reads and extracts the file you placed in and it will start installing it on your phone

wait till its done

Boom you have yourself Android 12 on your Edge 20 Pro
**Warning** this will erase your data
So i was poking around moto rescue tool as i wanted android 12 on my moto edge 20 pro which was stuck on 11 and accidentally found a way to update the phone without unlocking the bootloader via swap trick


Firstly download moto rescue tool
Rescue Tool
Then download a android 12 firmware for your moto (find it online)

Boot your phone into fastboot and hook it up to the rescue tool and click rescue it will start downloading the firmware for it it will start downloading android 11 firmware for it

Now you can either go to the default folder where it's downloading the firmware or change it to whichever folder you desire

Now take the 12 firmware you downloaded earlier bring it into the folder where rescue tool was downloading the firmware

Copy the name of temp file thats in the folder

Cancel the download (which will delete temp file)

Close rescue tool

And now take the firmware you downloaded the android 12 one and rename it to the name of that temp file (make sure file ends in zip not temp ignore the temp bit)

Turn on the rescue tool again and click rescue again it will "start downloading the firmware" again but it will actually sit at 0kbps as it reads and extracts the file you placed in and it will start installing it on your phone

wait till its done

Boom you have yourself Android 12 on your Edge 20 Pro
Hi, thanks for sharing this. I tried to flash a retail-apac 12 version to replace my China android 12 version, did not tried to change the file name, failed. Do you mean you changed the file name of zip which is downloading? Can you help to share the version of rescue tool you used?
 

Feilau

Member
May 21, 2019
6
0
Hi, thanks for sharing this. I tried to flash a retail-apac 12 version to replace my China android 12 version, did not tried to change the file name, failed. Do you mean you changed the file name of zip which is downloading? Can you help to share the version of rescue tool you used?
I tried many different ways to change the file names, the flashing process started but failed at about 70% stage. I guess the reason is that my original ROM is China CMCC Android 12 version , the RSA tool might have updated to block user flashing this ROM to other region.
I also tried to use Tiny Fast Boot tool to flash the APAC Android 12 version, also failed. Had to unlock the Boot Loader of my phone, then only flashing AP, finally worked. APAC Android 12 version is not that stable comparing with China version, but I feel the message notice (pop up) is better than China version, and much less pre-installed Apps.
 

Thechla

Member
Oct 24, 2014
34
11
Hi Dev,
without unlocking the bootloader, it wasn't allowing to flash the rom.
now the annoying msg comes at the boot screen that bootloader is unlocked and not safe bla bla bla..
is there any way by flashing the boot.img to remove this msg?
PS i do not want to flash a custom rom and root the phone.
 

Beetle84

Recognized Contributor
Hi Dev,
without unlocking the bootloader, it wasn't allowing to flash the rom.
now the annoying msg comes at the boot screen that bootloader is unlocked and not safe bla bla bla..
is there any way by flashing the boot.img to remove this msg?
PS i do not want to flash a custom rom and root the phone.
No way at all (that i am aware of), enjoy the message, treat it like a badge of honour 🤣
 
Last edited:

Thechla

Member
Oct 24, 2014
34
11
Hi Guys,

Good News!!

would like to confirm that after flashing android 12 simply go back to fastboot mode with power and vol down button and run a command from adb
fastboot oem flashing lock
will lock the bootloader and that annoying msg wont appear again.
data will be wipped which is not a big deal at all.
now you are good to sell your phone.
what a relief.
 

jeffreysus

Member
Jul 29, 2022
5
0
**Warning** this will erase your data
So i was poking around moto rescue tool as i wanted android 12 on my moto edge 20 pro which was stuck on 11 and accidentally found a way to update the phone without unlocking the bootloader via swap trick


Firstly download moto rescue tool
Rescue Tool
Then download a android 12 firmware for your moto (find it online)

Boot your phone into fastboot and hook it up to the rescue tool and click rescue it will start downloading the firmware for it it will start downloading android 11 firmware for it

Now you can either go to the default folder where it's downloading the firmware or change it to whichever folder you desire

Now take the 12 firmware you downloaded earlier bring it into the folder where rescue tool was downloading the firmware

Copy the name of temp file thats in the folder

Cancel the download (which will delete temp file)

Close rescue tool

And now take the firmware you downloaded the android 12 one and rename it to the name of that temp file (make sure file ends in zip not temp ignore the temp bit)

Turn on the rescue tool again and click rescue again it will "start downloading the firmware" again but it will actually sit at 0kbps as it reads and extracts the file you placed in and it will start installing it on your phone

wait till its done

Boom you have yourself Android 12 on your Edge 20m

**Warning** this will erase your data
So i was poking around moto rescue tool as i wanted android 12 on my moto edge 20 pro which was stuck on 11 and accidentally found a way to update the phone without unlocking the bootloader via swap trick


Firstly download moto rescue tool
Rescue Tool
Then download a android 12 firmware for your moto (find it online)

Boot your phone into fastboot and hook it up to the rescue tool and click rescue it will start downloading the firmware for it it will start downloading android 11 firmware for it

Now you can either go to the default folder where it's downloading the firmware or change it to whichever folder you desire

Now take the 12 firmware you downloaded earlier bring it into the folder where rescue tool was downloading the firmware

Copy the name of temp file thats in the folder

Cancel the download (which will delete temp file)

Close rescue tool

And now take the firmware you downloaded the android 12 one and rename it to the name of that temp file (make sure file ends in zip not temp ignore the temp bit)

Turn on the rescue tool again and click rescue again it will "start downloading the firmware" again but it will actually sit at 0kbps as it reads and extracts the file you placed in and it will start installing it on your phone

wait till its done

Boom you have yourself Android 12 on your Edge 20 Pro
My phone didn't work in rescue tool it says not compatible though it is edge s pro global rom from alliexpress..
 

jeffreysus

Member
Jul 29, 2022
5
0
I tried many different ways to change the file names, the flashing process started but failed at about 70% stage. I guess the reason is that my original ROM is China CMCC Android 12 version , the RSA tool might have updated to block user flashing this ROM to other region.
I also tried to use Tiny Fast Boot tool to flash the APAC Android 12 version, also failed. Had to unlock the Boot Loader of my phone, then only flashing AP, finally worked. APAC Android 12 version is not that stable comparing with China version, but I feel the message notice (pop up) is better than China version, and much less pre-installed Apps.
Can you help me that flashing AP how it was done? I'm stuck with android 11..
 

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    **Warning** this will erase your data
    So i was poking around moto rescue tool as i wanted android 12 on my moto edge 20 pro which was stuck on 11 and accidentally found a way to update the phone without unlocking the bootloader via swap trick


    Firstly download moto rescue tool
    Rescue Tool
    Then download a android 12 firmware for your moto (find it online)

    Boot your phone into fastboot and hook it up to the rescue tool and click rescue it will start downloading the firmware for it it will start downloading android 11 firmware for it

    Now you can either go to the default folder where it's downloading the firmware or change it to whichever folder you desire

    Now take the 12 firmware you downloaded earlier bring it into the folder where rescue tool was downloading the firmware

    Copy the name of temp file thats in the folder

    Cancel the download (which will delete temp file)

    Close rescue tool

    And now take the firmware you downloaded the android 12 one and rename it to the name of that temp file (make sure file ends in zip not temp ignore the temp bit)

    Turn on the rescue tool again and click rescue again it will "start downloading the firmware" again but it will actually sit at 0kbps as it reads and extracts the file you placed in and it will start installing it on your phone

    wait till its done

    Boom you have yourself Android 12 on your Edge 20 Pro