Google Pixel 3a

Overview

codename sargo	⚙️	🛡️
Flavor (?):	Pro	Slim
Android:	13	13
First released:	2025-03-01	2025-03-03
Firmware:	included	included
Encryption (?):	ICE	ICE
Relockable:	yes	yes
VerifiedBoot/AVB (?):	v2.0	v2.0
Patchlevel (?):	Platform + Kernel	Platform + Kernel
Verified & tested by:	The AXP.OS community	The AXP.OS community
State:	stable	stable

Installation guide

You want to switch between flavors or coming from DivestOS?

Please read this first: All about AXP.OS flavors If you miss a flavor you can request it here.

Known issues

AXP.OS - Known Issues
Issue tracker - won’t fix

Specific for your device:

Knowledgebase: sargo

Boot modes

Each device has its own method to access special boot modes.
See: sargo (@LineageOS wiki)

Firmware

AXP.OS for the Google Pixel 3a includes the appropriate bootloader and modem firmware for the corresponding Android version provided.

Important

Unfortunately, some manufacturers enable so-called “Anti-Rollback Protection” (ARB), which in the worst-case scenario can even take effect within the bootloader (notable examples include various LG models, as well as Samsung and even some Google Pixel devices).

In these cases, special caution must be exercised, as this can often result in a hard brick, which may be unreparable depending on the manufacturer and model. This is not a problem with AXP.OS itself, but affects all custom OSes for such devices.

If you are unsure, please check with the support room before flashing AXP.OS.

Install / Upgrade

Install (Pixel devices)

Setup AXP.OS

Follow Setup

Re-locking the bootloader

Follow Bootloader-Lock

Fingerprint information

On boot you may see a fingerprint/ID verifying AVB trust.
Some devices show only 8 chars, others full digest.
See more details here.

This fingerprint is unique per device and flavor.

If you see a different ID, immediately request support.

Pro build

BOOTLOADER minimal ID
        BB8B6D9E

BOOTLOADER full ID:
        BB8B6D9E18C68E46
        369A874E6ADDB573
        41A349D9AC536C95
        1A0560AB2F63B07F

Slim build

BOOTLOADER minimal ID
        AC2F6121

BOOTLOADER full ID:
        AC2F6121652F3607
        71EEB5510F6DB2D2
        9CB444CE23F8A64E
        9D1FDB7175432C32

XDA thread

See here

Debugging

DEVICE-BOOT-DEBUG-PATH: /metadata
See Logs

Download

All downloads have a GPG signed sha512sum file which should be used to verify the download & file integrity.
Details how to make use out of it can be found here.

💡 The hashsum of new builds are also send in the sfX Automation channel. This gives you a second and independent option for comparison if the download server is compromised.

Flavor (what's this?)	OS zip	Recovery image	FACTORY zip	AVB key (what's this?)	Release key (what's this?)
Pro ⚙️	(click)	(click)	(click)	(click)	(right click, save-as)
	(click)	(click)	(click)	(right click, save-as) click here for info
Slim 🛡️	(click)	(click)	(click)	(click)	(right click, save-as)
	(click)	(click)	(click)	(right click, save-as) click here for info

Last updated on 2026-05-06

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