[Kirk Burkhead]

My Ok Google command does not work when screen is locked like it did before Oreo update.

Anyone else have this issue?

[can3gxw]

I had to delete and retrain mine. Also try toggling the ok Google lock screen setting

[maxburn]

I had to delete and retrain mine. Also try toggling the ok Google lock screen setting

I think I had to do this too.

[matty032]

My OK Google has been hit and miss since day one. I have retrained voice several dozen times. It always seems to fail when I am showing off the feature to someone.

[Kirk Burkhead]

I had to delete and retrain mine. Also try toggling the ok Google lock screen setting

That's what I had to do. Working well now.

[ptkelly]

I'm using the Pixel. When I upgraded to the final Android 8.0 I did a factory restore. I don't really know if there would have been a problem but I often use OK Google to give voice instructions for a reminder and it works fine on a lock screen.

[ASFraley]

I had the same experience as can3gxw. After update to Oreo 8.0, "OK Google" was no longer recognized when phone was locked or unlocked. What can3gxw suggested worked for me.

I opened the Google App and went to Settings in main menu. Then "'OK Google' detection". Then I disabled all 3 OK Google settings ("Say 'OK Google' any time", "Trusted voice", and "While driving"). Then I re-enabled all 3 and it asked me to retrain by saying "OK Google" 3 times (which is weird because I never explicitly deleted the training data). Then "OK Google" seemed to work fine again after Oreo upgrade.

For fun, I disabled and re-enabled all 3 another time and it did NOT make me retrain "OK Google" phrase again. So I'm guessing somehow the Oreo upgrade corrupted the "OK Google" training data.