Unable to restore stock ROM

brie

DeletedUser87

brie have you tried locking it manually via CLI?

brie

DeletedUser87 No. I will give that a try. Since I am able to boot into the ROM, is there a chance of bricking my device while manually locking it? I will wait until someone is able to replicate the problem for the moment.

phone-company

Same here,. after flashing to the broken last Version I tryed to flash Back to original Google rom. Bootloader won't lock. I did fix it with flashing back to graphene os. Then bootloader closed again

brie

phone-company Could you elaborate? Are you saying that flashing GrapheneOS allowed you to flash the stock ROM and relock the bootloader?

de0u

brie phone-company Michiel cantguardtom daris ErnestThornhill jimbob Fawkes

This phenomenon seems well-attested and repeatable. Might one of you be willing to file an issue on the GrapheneOS issue tracker to make sure the developers are aware? If so, please post a link to the issue here so that others can then add a comment to it.

phone-company

brie After the faulty 700 version I tried to install the original Google software. But I could no longer close the boitloader. I only managed to do this after flashing back to a working version of Graphene OS. I hope you can understand it better this way

brie

phone-company I'm getting the same error. Is the faulty GrapheneOS still being used in the web installer? How can I flash another version, if that is the case?

Michiel

I had the same with a pixel 6a. I suspected it had to do with the bootloader version and tried the Beta QPR (1 or 2, don't remember which). This worked well, it locked the bootloader. After enrolling in the Beta programme and subsequently quitting it I am back at the latest stable stock version.

brie

Michiel Thank you. Flashing QPR2 allowed me to flash the stable release. Solved.

cantguardtom

Hey everyone,
Same problem for me with a Pixel Fold, thank you so much 'cause I solved it too
Was able to re-lock the bootloader with this build: BP11.241025.006 (12620009) | felix_beta-user (signed) | Android 15 QPR2 Beta 1

daris

I had the same problem yesterday with my pixel 8a. Bootloader wouldn't lock.

ErnestThornhill

I had the same problem on my Pixel 9 Pro XL, 9 Pro Fold and Tablet. After encountering the 9-series issue with the 2024120700 Alpha release. I wanted to replace GrapheneOS with the stock OS so that I could reinstall GrapheneOS and be back on the 2024120400 Stable release. I encountered the same bootloader locking error but everything worked out fine in the end and I just instead locked it after reinstalling GrapheneOS on all three devices.

jimbob

Using Android 14 let me re-lock.

de0u

jimbob Thanks for the report!

Fawkes

jimbob I had the same issue trying to revert my Pixel 9 Pro XL back to stock Android 15. I tried multiple times but I got the same message.

Fastboot command (flashing lock) failed: 'invalid android images, skip locking'

Reverting back to Android 14 allowed me to lock the bootloader (don't forget to remove the non-stock key first on the GrapheneOS web installer website first!)

Michiel

de0u Done!

de0u

Michiel Thanks for filing Issue #4476 and linking to this forum thread.

GrapheneOS

This sounds like a bug in the stock OS web flashing tool or stock OS factory images. It's not our fault if they don't flash all of the images that are required. We need to know if there's an issue with installing the latest releases of GrapheneOS since Android 15 QPR1 in case the issue also impacts us, but there's nothing for us to do about an issue with the stock OS installation having a bug.