I have my FF2 conneted to my car stereo system via bluetooth. All is ok except the mobile signal strength sticks at whatever level it is when connecting at and doesn’t update. The handset itself behaves as expected. The FF2 is updated to Android 9.
I have tried rebooting the phone, removing the battery, even resetting back to factory settings with no change.
So it means if you have no mobile signal, you will stay with no signal and you won’t have any data? Is it just the indicator that doesn’t change or the signal itself?
Perhaps your SIM card? How old is it? Did you try to insert another one and check?