Hello,
with latest security update for pixel phones, google introduced an anti-rollback in stock rom.
It means there is probably no way to flash android 14 in downgrade from android 15.
So no way to flash the actual /e/ 2.9 build…
Did you experiment this problem ?
Regain your privacy! Adopt /e/OS the deGoogled mobile OS and online services
No, it’s even simpler than that unfortunately, it would appear that it’s impossible to downgrade to Android 14 if you’ve installed the May 2025 security update.
Also, since I made this update without knowing that there was this anti-rollback implementation, I’m good to wait for v3 of /e/ under android 15 to (re)switch to /e/.
This is a new warning dated May 2025 mentioned Factory Images for Nexus and Pixel Devices
It looks too risky for me, I’ll wait for /e/ v3 with android 15. 
Sadly, i just checked on the /e/OS Tags and seems that it’s gonna still be based on Android 14, not Android 15
Android 15 should arrive on Pixel 6a. Maybe not with first builds of /e/OS v3, but maybe later ?
It was announced on the Forum when the first releases are planned. June/July. Then maybe already with 3.1 or 3.2…
Pixel 6a appears in topic about supported devices for Android 15.
The first version of /e/OS v3.0, no longer available at the moment, actually ran on Android 14.
We’ll wait for v3.1 or v3.2 or v3.more…
Hello everyone,
I see this topic unfortunately too late. Having no warning on the documentation e os I launched the instant from Iodé OS which was under Android 15 with the security patch of June.
My phone is completely brick. Nothing lights up anymore.
I was very happy with Iodé OS, but I wanted to try E os 3, and now I’m without a smartphone.
Oh… It’s sad.
No way to flash latest stable with android flashtool ?
No action possible, recovery and bootloader inaccessible, no vibration when trying to boot or load.
Looks like Android 16 stable for Pixel 6a has anti-rollback implementation too… 
So fyi I was able to downgrade a Pixel 6a from Android 16 to Android 15 thanks to this XDA thread where I found an Android 15 image (as Google doesn’t provide anything older than Android 16 on Pixel 6a now).
Image: 2.93 GB file on MEGA or https://drive.google.com/file/d/1mZ-jD3IPGXXt7nn6ATvZ4AvHt6JwoaKy/view?usp=sharing
The file android-info.txt has already been modified in that image to bypass the anti-rollback. So you can basically unlock the bootloader, put your phone in Fastboot mode and then run ./flash-all.sh (or .bat if you are on Windows) and you will have Android 15 back, from May.
And after that I was able to flash /e/ Recovery and then the OS successfully.
Hi,
good news !
So, how did you flash it ? Sorry, I’m a real noob and I generally flash stock rom with android flashtool web.
I just described it in my message above. What else do you need?
Sorry, my default again : read AFTER write…
After downgrade, did your pixel work good without any bug ? (I mean, before flashing eOS)
No idea, I just booted it on Android 15, enable developer mode, enable USB debugging, and then immediately flashed /e/. But I see no reason why it would not work flawlessly with Android 15.
Maybe because of this? If the bootloader was not May 2025 with Android 16 then it works else it looks pretty grim
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