Will I get a brick if I lock bootloader with an old stock ROM?

[Oybek78]

I want to relock bootloader, but will I get brick if I lock bootloader with old stock ROM installed on device?

 

[jwoegerbauer]

Look inside here:

Lock BootLoader after Rooting?

Thanks for taking time to read my query. I was wondering if I've to lock boot-loader after rooting ( I just rooted my Oero) and before looking can I take everything backup on titanium backup and then restore everything after locking ? I'm I...

forum.xda-developers.com

 

[Oybek78]

Look inside here:

Lock BootLoader after Rooting?

Thanks for taking time to read my query. I was wondering if I've to lock boot-loader after rooting ( I just rooted my Oero) and before looking can I take everything backup on titanium backup and then restore everything after locking ? I'm I...

forum.xda-developers.com

I know that if I install modified ROM and lock bootloader I will get a brick. But will I get a brick if i install official (stock) ROM but old version and then lock bootloader? For example, I installed stock ROM (not modified) with Android 10, but the latest is Android 11 then I locked bootloader. Will I get a brick?

 

[Oybek78]

Look inside here:

Lock BootLoader after Rooting?

Thanks for taking time to read my query. I was wondering if I've to lock boot-loader after rooting ( I just rooted my Oero) and before looking can I take everything backup on titanium backup and then restore everything after locking ? I'm I...

forum.xda-developers.com

The question is, can I lock the bootloader with the old version of the official firmware installed without getting a brick. Because the old version of the firmware works smoother.

 

[jwoegerbauer]

Locking a bootloader doesn't affect ROM actually installed: Lock or Unlock will wipe your data, that's all.

 

[Oybek78]

Locking a bootloader doesn't affect ROM actually installed: Lock or Unlock will wipe your data, that's all.

So can I install old version of fw? I heard something about rollback protection.

 

[SubwayChamp]

So can I install old version of fw? I heard something about rollback protection.

You still, or I didn´t find, that you mention the model of your device, that´s matter to have the right answer.

Also, it depends on which method you used to flash the ROM, if you officially, flashed the ROM, and the rollback didn´t affect your device, then it won´t do, locking or unlocking it.

 

[jwoegerbauer]

So can I install old version of fw? I heard something about rollback protection.

The stock ROM can be installed on the phone at any time. Mostly via ADB / Fastboot tools.

 

[Oybek78]

You still, or I didn´t find, that you mention the model of your device, that´s matter to have the right answer.

Also, it depends on which method you used to flash the ROM, if you officially, flashed the ROM, and the rollback didn´t affect your device, then it won´t do, locking or unlocking it.

My phone is Sony Xperia 1 J9110. I flashed it officially to the latest ROM through settings. Then I unlocked the bootloader and flashed the old stock ROM via newflasher. Then I decided to relock the bootloader with old stock ROM installed. Does this mean that I will get my phone bricked if I lock the bootloader with old stock ROM actually installed?

 

[Oybek78]

The stock ROM can be installed on the phone at any time. Mostly via ADB / Fastboot tools.

But can I lock the bootloader with old stock ROM installed?

 

[Oybek78]

I saw somewhere that if you lock the bootloader with the old firmware version, you may get brick. But I'm not sure about that.

 

[jwoegerbauer]

Why steadily repeat your posts?

FYI: I hereby opt out of this thread.

 

[Oybek78]

Why steadily repeat your posts?

FYI: I hereby opt out of this thread.

Because you answered me

 

[SubwayChamp]

My phone is Sony Xperia 1 J9110. I flashed it officially to the latest ROM through settings. Then I unlocked the bootloader and flashed the old stock ROM via newflasher. Then I decided to relock the bootloader with old stock ROM installed. Does this mean that I will get my phone bricked if I lock the bootloader with old stock ROM actually installed?

Yes, always that you flash a stock ROM, you can re-lock it, fastboot will erase the data as a security measurement.