I drive 2 Toyota vehicles. A 2011 Prius and a 2014 Rav4.
I drive 2 Toyota vehicles. A 2011 Prius and a 2014 Rav4. On both cars when I pass through a no signal area the car display shows "No service" very quickly. However when I am back in a signal area, the the car display continues ot show "No service" and will not let me make an outgoing call until I disconnect then reconnect the phone. If I get an incoming call while in the "No service" state the call comes in, rings and can be answered normally.
I have tried setting the phone so bluetooth is not battery optimized, but that has not helped. Any ideas for what else I may need to adjust?
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I had exactly the same with Ford Sync 1. I contacted Nokia support, the gave me the BT specs from the phone to compare with the BT of the car. Unfortunately i didn't know those specs. I bought a new car with Sync 3. Until now I had the issue once that when I came back to the car that BT did connect, but no cell service. Today I will go to a underground parking and test it with the 2.22E patch (TA-1043).
That's the only problem I have with the phone. Overall very happy with it.
Just tested the BT cell service. Didn't work. After returning to to car, connection is made. After leaving the parking cell service is not connecting. No strength signal is displayed on the car screen although cell service on the phone is correct. Outgoing call not possible, incoming call is working.
(Temporarily I hope, HMD!!) Workaround is disconnect/connect phone on car screen.
Thanks for the input MaxH. So it looks like the issue is wider spread than just the Toyotas. I too use the disconnect/reconnect trick to get the phone back, though it is not easy to do on a winding canyon road. Hopefully they will fix this issue soon.
1) new car, Ford Fiesta 2018 Sync 3. Same problem on Android 8.1 Oreo.
2) Android 9 Pie. Problem seems to be a little different. Signal indicator disappears now during driving (previous only after disconnecting/connecting when parking/leaving an underground parking).
But, need to do more testing, it looks like out- and inbound calls still work.
When appears the no signal icon I can't make outcoming calls from the UConnect. When there is an incoming call, the UConnect rings, but I can't answer from it, I must take the phone for answer the call. In both cases the audio of the call is transmitted via UConnect. The problem is to answer or make a call.
I will try the workaround of @Timo Anttila.
Clearing data in cashes helps temperary - sometimes. I have asked help from Nokia support several times - no help. The same issue also in my Peugeot. So the problem is not in the car facility but in the phone/android.
Does anyone have some further info how to fix this "permanent" issue?
Definitely a Nokia 6.1 problem!!
Come on Nokia, we your consumers need a fix asap
The fix was factory reset and no restore of phone settings. I hope will work for you also.