Greetings,

I’m trying to install Graphene OS on a Pixel 4a.

The method I’m using is the web install, since it’s the only one available to me (lack of hardware and software compatibility), from my previous android phone.

The installing phone runs Android 8, the latest Chrome browser (play store certified up to date), has OEM unlock enabled and USB debugging enabled.

Pixel 4a runs Android 12.

Usb cable is the original from Pixel 4a.

I run everything ok up until the point where I et to the fastbootd screen with the options “Reboot system now”, “Enter recovery mode”, “Reboot to bootloader” and “Power Off”.

On the side of the installing phone, Chrome keeps asking for permission, as I keep accepting it, and the error message persists:

“Failed to execute “claim interface” on “USBdevice”: Unable to claim interface.”

If I rerun the process with another mode of USB connection (instead of giving energy to the Pixel, taking it from it) chrome happens to not find any device to connect, when “reconnect” is pushed. The message then shows as:

“”Failed to execute “request device” on “USB”: No device selected.

I’ve rerun the process with the USB debuggind disabled, I’ve tried to shoot down every process running in the background affecting the USB except the basic ones. I’ve erased cache.

I don’t have any technical expertise, and would rate myself barely above the average user.

I’ve consulted some threads here and elsewhere with similar problems, but I can’t see anything of help as per to my case.

I’ll appreciate any help, I’d really like to try out this system as I delve deeper into the Open Source, privacy focused technology.

Many thanks.