Ok, got a Nokia 6.1 phone that was working perfectly on Android 9. Upgraded to Android 10 and then a problem started with mobile data. I'm going to explain slowly and step by step to show how I recreate the problem. I can recreate it 100% of the time.
I have wifi on and mobile turned off. Then if I turn wifi off then after about 1-2 seconds the H+ icon displays by the signal bar. I confirm that all the wifi and mobile data toggles are off (Wifi switch to mobile data automatically setting always off). Confirm it in settings again, but the H+ data icon still displays. More alarmingly, I go into Chrome to see whether it will work and its using my mobile data (but the settings are off!!)
Ok, test 2. I leave wifi turned on, but keep mobile data off. I move out of wifi range and 1-2 seconds later, the H+ pops up again and once again mobile data is being used.
Ok, test 3. Put wifi on and mobile data on. Turn off wifi, turn off mobile (in that order). No data connection. Good.
Test 4. Put wifi on, leave mobile data off. Turn off wifi. H+ pops up. I enable mobile data and turn it off again. No data connection. Good
Test 5. This I discovered after working from home and only having wifi on and mobile off. I received a message from my service provider that my mobile data was running low. I checked the balance and moved on. Next day, I check the balance again and it is slowly decreasing. My phone is still using mobile data in tiny amounts even though the mobile toggle is off and I'm only using wifi. (It has been depleting my mobile data for the last week already and I'm on wifi only. No mobile usage shows on data usage screen for mobile. It's not a lot of data, about 1-2mb per day, but still, mobile is off, it shouldn't be using anything.) In test 1 and test 2 it uses full mobile data as if it was turned on, but it shows it is off.
Please HMD, fix this! I can cope with the whatsapp and games sound popping and cracking after the Android 10 update, but not a phone that is using mobile data when it shouldn't! I don't want to leave my wifi area and then an hour later my phone has used up my mobile data and then it will start using my airtime at out-of-bundle rates. If this doesn't get fixed, I'm afraid this loyal Nokia fan will have to find another brand.
The Nokia 3.4 is now available in India! You can get yours at the Nokia phones store. Click here.
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