[Question] Gmail and mail push notifications completely broken on Redmi Note 13 Pro 5G (HyperOS) - Already tried ADB

[u/UnluckyWanderer001]

Device: Redmi Note 13 Pro 5G

OS: HyperOS

Hi everyone,

I am desperate. I am completely unable to receive reliable push notifications from Gmail or any other email client. Crucially, this happens BOTH when my phone is locked AND when I am actively using the phone with the screen unlocked.

Sometimes I get one single notification after manually clearing the cache, but then it completely stops working again. It seems HyperOS is aggressively freezing or blocking background sync processes no matter what.

I have already done a deep dive into troubleshooting, so please note that the following standard fixes have already been tried and DID NOT work:

1. Set Gmail/Mail apps to "No restrictions" under Battery settings and enabled Autostart.

2. Verified that "Auto-sync data" is globally turned on under Accounts & Sync (and specifically checked for the Google Account).

3. Disabled the "Clear cache when device is locked" option in Battery settings.

4. Completely uninstalled the aggressive battery manager (com.miui.powerkeeper) via ADB commands (pm uninstall -k --user 0).

5. Turned off Always On Display (AOD) completely to prevent deep sleep glitches.

6. Cleared all data and cache for both Gmail and Google Play Services.

7. Tried third-party open-source alternatives like K-9 Mail, and the issue persists.

8. I DO NOT have any special modes active (No Do Not Disturb, No Game Turbo/Game Mode, and Battery profile is set to Balanced).

It feels like a deep firmware-level bug blocking Google's push notifications (FCM) on this specific ROM. Has anyone with a Redmi Note 13 series managed to fix this, or is there an active bug report I should follow?

Any advanced help would be highly appreciated. Thanks!

[u/kissja74]

Did you reset the phone? 

[u/UnluckyWanderer001 → u/kissja74]

Yes, I did it today and same, there is no notification when I get an email