Pixel 5 Revert to Stock Problems / WEB Installer Problems

Cancunia

Is there a documented sequence to return to stock Android 14?

I use MX Linux on my laptop with Opera (Chrome) web browser and bought a Pixel 5 to try out GrapheneOS. I followed the instructions on the Web Installer [https://grapheneos.org/install/web#web-install](https://) page.
All went well with the install and I used GrapheneOS mostly issue free but had some problems with Macrodroid so decided to revert to stock and see if the problems exist under stock.

At the bottom of the Web Installer page is a section about return to stock, which mentions removing the Non Stock Key and that's when I started to run into trouble. Am I right in thinking that you need the BootLoader unlocked to do this? If so, should it be re-locked before attempting to use the Google Web Flashing tool, or just leave it unlocked and then go to the Google tool? I re-locked the Boot Loader and then the phone would not boot...
Then I tried to re-flash GrapheneOS using the Web Installer but after downloading the release files, I got an error message on the web page when trying to Flash the release "Error: Unable to set device configuration."

I tried several methods to recover from this without success, but then decided to try the web installer again and for some reason it worked. OK, I think some of this is down to Linux & my browser and WebUSB so will put it down to experience but if there is a documented guide to return to stock, please can someone link to it?

Also, where are the GrapheneOS release files that are downloaded vie the Web Installer stored on Linux?

Thanks

spring-onion

Cancunia Am I right in thinking that you need the BootLoader unlocked to do this?

Yes.

Cancunia If so, should it be re-locked before attempting to use the Google Web Flashing tool, or just leave it unlocked and then go to the Google tool?

Leave it unlocked, you can't install a different operating system otherwise.

Cancunia I re-locked the Boot Loader and then the phone would not boot...

Because you removed the boot key, that's a critical component.

Cancunia "Error: Unable to set device configuration."

You had locked the bootloader again, thus making a reinstall impossible.

Cancunia if there is a documented guide to return to stock

Unlock bootloader, hit the remove non-stock key button, proceed with Google's web installer, done. It's not worded in a straightforward way, I agree.

admin

AI generated content has been removed and the account banned.

Cancunia

Many thanks @spring-onion that's crystal clear now.

Last question, where are the Web Install files downloaded to on Linux?

spring-onion

I reckon that will depend on the browser of your choice. Here's the path for chromium version 118:

~/.config/chromium/Default/IndexedDB/

Cancunia

spring-onion

Unfortunately that directory does not exist with Opera on Linux.
Any idea where the web installer code is listed ? Github perhaps?

spring-onion

Cancunia Any idea where the web installer code is listed ? Github perhaps?

Indeed: https://github.com/GrapheneOS

But I couldn't tell you where to look in particular. You should be able to find the downloaded files on your pc with a little searching.

Cancunia

A quick update in case anyone else come across this and wonders why they can't flash the stock OS or re-flash GrapheneOS from a Linux device either by the Web Installer or CLI.
I discovered by accident that Fastboot does not behave properly until you run "fastboot flashing lock", or "Lock bootloader". There's no need to lock the bootloader you can just return to the bootloader by scrolling to "Do Not Lock".
This was on Fastboot 34.x & 35.x

I'm guessing this is a Linux thing rather than Windows, so most people won't see the issue.