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Pixel eSIM / eUICC Firmware Fix Guide
> ⚠️ Warning: This process requires root access. Your eID may be regenerated, which can affect existing eSIM profiles. Back up anything important and be prepared to download or reactivate your eSIM afterward.
> ⚠️ Important: Avoid using Android Flash Tool for flashing or restoring the device. Although it is official, it can trigger the eSIM/eUICC issue addressed by this guide. If a factory restore is necessary, download the matching official factory-image package and use its included flash-all script instead.
Core idea: The updater identifies the installed image and checks compatibility only after you tap SE FIRMWARE UPGRADE and read the confirmation dialog before pressing CONTINUE. Let the dialog identify the correct image.
Requirements
• Rooted Pixel device
• USB debugging enabled
• A computer with ADB configured
Step 1 — Open an ADB shell
Connect the phone to your computer, then run:
adb shell
Step 2 — Obtain root access
Inside the ADB shell, run:
su
Grant the root request on the phone if prompted.
Step 3 — Set temporary system properties
Run the following commands one at a time in the same root shell:
resetprop ro.build.type eng
resetprop ro.build.tags eng
resetprop ro.debuggable 1
setenforce 0
Step 4 — Restart framework
stop && sleep 2 && start
The phone will reboot. Do not close the ADB shell. Once Android has fully booted, unlock the phone and continue using the same shell session.
Step 5 — Find the config key
• Pixel 6 — P21 (ST54K)
• Pixel 7 — P22 (ST54K / ST33J)
• Pixel 8 — P23_ST54L
• Pixel 9 — P24_ST54L
• Pixel 10 — P25_ST54L
• Pixel 11 — P26_ST54L
> ⚠️ Pixel 6/7: The current updater does not include their firmware. You may need to downgrade to an older Android build to access the older updater, or manually use an older EuiccSupportPixel build. Downgrading wipes data and may be blocked by anti-rollback protection.
Pixel Fold devices and Tablet use their generation’s key. Example: Pixel 9 Pro Fold
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