Problem with voice recording on pixel 8

FAFAU

Hello, I have major problem with my pixel 8 on GOS, ver. 2025110801 and now updated to 2025112101. Basically I can't use microphone in any app, it would not record any audio, for example: Signal vioce message or (the most important for me) voice recorder. It says it's using microphone (green icon in right top corner) but the saved audio is silent. What's more interesting in phone calls the other side hears me (recording phone calls also isn't working) so I know the hardware is working. Access to microphone and sensors is granted. The app exploit protection compatibility mode is also turned on. My knowledge ends here so I'm asking you for help.

I have seen other discussions here about similar issue but none of the solutions worked. Maybe I've skipped some discussions, if that's the case you could link them here.

P. S. I have switched from other pixel 8 with GOS installed on ver. 2025110801 (was the same as my current phone before updating) and there the mic was working perfectly so I'm even more dumbfounded.

Have a great day

Novalissoide

FAFAU still no microphone at all?

FAFAU

Novalissoide Hi, still nothing. Today I'll try to reinstall system to see if that helps.

monogram

FAFAU Did you disable the Sensors permission or enable the Sensors Dev Options Quick Tile by any chance?

FAFAU

monogram I have enabled sensors permission for voice recorded app but I didn't enable anything in dev options aside animations scale.

Novalissoide

FAFAU If you want us to help you check your device, you should turn developer options off. No ADB, no Shitzuku. Bootloader must be relocked and your device should be auto-updated.

FAFAU

Novalissoide I have locked dev options and it's still the same. The adb was off, bootloader was also locked. Also I didn't have anything related to shitzuku.

MetropleX

Can't replicate on my Pixel 8. @Novalissoide advice above is essential to troubleshoot this for you.

Novalissoide

FAFAU locked dev options and it's still the same.

For clarity: by "locked dev options", do you mean that any changes you've done in Developer Options was reversed, only after that, you turned the Developer Options OFF?
Not all of them gets reversed by themselves by just turning off the Dev Options, some must be returned to their defaults manually.

Novalissoide

FAFAU

FAFAU The adb was off

Was off, as in 'you temporarily stopped using Adb after having used it'?

FAFAU

First I turned them manually as they should be, then turned developer options off.

FAFAU

Novalissoide I didn't use adb, I had dev options only for animations scale and "system blur" or something like that. I have turned them to default state, then disabled dev options. Besides these two options I didn't play with any other settings.

Novalissoide

FAFAU Settings > Security & privacy > Privacy controls > Microphone access

That toggle is on?

FAFAU

Novalissoide yes.

Novalissoide

FAFAU use your Auditor app and check the device.

FAFAU

Novalissoide What exactly should I be looking for in the auditor result? The app that you've linked is the exact one I am using, I did reinstall it from that link and gave it permissions it wanted and still the same story.

Novalissoide

Let's try a recently updated recorder app:
https://github.com/FossifyOrg/Voice-Recorder/releases
Install, give permissions that it ask for and test it.

Novalissoide

FAFAU ok, do this check first. When rebooting, the first bootscreen can be paused by the top right icon. A bit below, there's supposed to be a long line of code which is the official GrapheneOS verified boot key hash.

For Pixel8, it is exactly this line:
cd7479653aa88208f9f03034810ef9b7b0af8a9d41e2000e458ac403a2acb233

Pause at reboot and check if the line is identical with the one i gave you.

FAFAU

Yes it is.

Novalissoide

FAFAU different test app.

https://gitlab.com/YuryShchasny/recordequalizer/-/releases/1.1.1

Novalissoide

FAFAU searching for a good hardware testing app, my old doesn't do android16. .