• Announcements

  • Workaround for Android 15 QPR2 fingerprint firmware glitch on Pixel 9 (non-Pro)

It's possible this only impacts 9th generation Pixels in which case our initial 1/5000 estimate was probably accurate based on most users not being on 9th generation Pixels.

Hmm; I may have spoken too soon. Upon another reboot, the fingerprint functions have again disappeared. While it was working briefly, fingerprint functions within apps was flaky / intermittent.

Pixel 9 here. No fingerprint functionality after a full shut down and a restart. Will try more restarts and report back.

6a no issue with fingerprint unlock

Pixel 9 as well, fingerprint option disappeared after a system update, persisted through the first shutdown cycle, then came back after a second.

No issue on 6th,7th and 8th gen pixels.

Test models :

  • 6a, 6, 6 pro
  • 7, 7a
  • 8,8 pro

Unfortunately no pixels 9th in my collection to check.

GrapheneOS changed the title to Workaround for rare Pixel 9 fingerprint firmware glitch with Android 15 QPR2 .

Second Pixel 9 with GrapheneOS at home, same issue happened, resolved after 3rd shutdown cycle.

I have a Pixel 9 and have the issue.

Can confirm on a Pixel 9 with 2025030800.
One full power cycle fixed it, previous restarts did not.

  • r0bi replied to this.

    kaiproctor Are the fingerprint options completely missing or does it just not work but the options are still present?

        GrapheneOS changed the title to Workaround for very rare fingerprint firmware glitch with Android 15 QPR2 .

        Can confirm, fingerprint options are completely missing after the most recent update on my Pixel 9. Multiple restarts and hard reboots have not resolved the issue. Fingerprint / biometric settings have also disappeared completely from the Security and privacy settings menu.

        • de0u replied to this.

          Vladomo Multiple restarts and hard reboots have not resolved the issue.

          Try turning the device off and leaving it off for a while (at least five minutes)?

            Another shutdown and boot solved the issue, thanks!

            It's optimizing apps again.

            Pixel 9, Build 2025030900

            A further update, the latest reboot has seen fingerprint functionality disappear again... I will see if further shutdowns fix the issue again.