Mi 11 Lite 5G NE (Lisa)
Still on 22.9.21. Everything worked perfectly until a five or six of days ago - then I started to observe problems with Mobile Network
Sometimes I was not able to browse - saying no Internet. Then, a minute later Internet was automatically re-established.
Or I got a notification about a mail - but then I was not able to open and read the mail.
Similarly, GitHub, XDA, etc would suddenly become unavailable when I was out in the town
At first, I thought there maybe was really a problem with coverage but when it started to repeat I became suspicious knowing that on the route I everyday go, there is an excellent 5G coverage and I previously always had stable and terribly fast connection
Next day it became even worse. I wanted to make a call but the calling was immediately dropped as I was not attached to the network - I checked and indeed there was no icon like that the phone was really not attached to the operator's network
Since I knew that I didn't do any (related) change on my phone over the several days I started to be suspicious about the annoying Carrier services (com google.android.ims) updates that were repeating over the week or so
I googled and found that from time to time people used to report similar problems on various phones and that the issues would eventually be addressed to the troubles with Carrier Services
Finally I uninstalled all updates of Carrier Services (and blocked Google Play to update Carrier Services anymore) and since then, for the last two days my 22.9.21 works again smooth like the first days, with the Mobile Network always being 100% available and reliable
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A month or so ago I observed that I was no more reliably receiving Teams notifications.
I even reverted Teams to an older version but it didn't help. After a couple of days I became pretty sure that Teams notifications were usually missing when I was not at home or work WiFi but out in the town
Few days later Teams notifications started to work fine again with no issues (at the time when I completely stopped playing with Teams permissions, notification settings, wiping Team's data and reinstalling Teams or anything(
I could only deducted that troubles with Teams notifications started about the same day when Carrier services were updated and troubles then stopped when Carrier services were updated next time
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Btw, dual SIM, first SIM default for calls and Mobile Internet.
Preferred network type 5G for first SIM and 4G for the second SIM.
WoLTE and WoWiFi disabled (not supported by the operator or my subscription)
