Multiuser Issue for Android 11 GSI GApps

[edwining01]

TL;DR

I have been using the GSI image for a few days. The device flashed a rom with GApps. When switched to a secondary user, an error message, "This device isn't Play Protect certified", will be promoted as a notification.

• Do any other devices have this problem or is it only on Poco M3?

• Is that some kind of prop of the secondary user being override?

• Is the secondary user missing some permission to read the GSF id?

• What else do I needed to log for further investigation?

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Steps

Play store is still quite important for me personally.

At first after flashed the GSI ROM with GApps and after set up the primary user, I got the "This device isn't Play Protect certified" notification.

Then, I verified my device on Google after a few searching. The warning had been dismissed.

I thought it works fine but problem happened while creating new user:

• The first try was to turn off any internet (wifi and 4G), then create and set up a new user. It seemed worked at first. However after I reboot the device and switch back to that account, warning came back (with internet).

• I then tried create a new user again and reboot and switch back without any network connected. Everything looked fine.

• Another try is to create new user and set up offline, and add new google account in settings with internet connection. The warning came back after the process Checking Info of settings: Add account.

(All three cases above won't affect the primary user.)

Here are the logcat result of the last case. I hope that would be useful.

logcat files (gist)

logcat_0_switch_user.txt: Switch user after user created.
logcat_1_setup_user.txt: Init setup for user without wifi.
logcat_2_add_gac.txt: Tried to add Google account in settings after wifi was on.

[phhusson]

Well issue is that GSF ID is different for different users, to get it do:

sqlite3 /data/user/11/com.google.android.gsf/databases/gservices.db 'select * from main where name = "android_id";'

the "11" might change. just list folders in /data/user

[edwining01]

It works!

Never know there are more than one database before. Thanks a lot! 😄

[thewh1teagle]

For anyone who facing the same issue,
just want to help you -
if it still doesn't works
Clear data for both Play Store and Play Services, then reboot. do this even twice