Wednesday
Since updating to version 34.1010.0820.88
Sim Card Slot #1 or #2 either don't have signal or signal is too low or NOT DETECTING THE SIM CARD
Friday
Hello @Zekatsuma
Does this happen everywhere? Or just in a specific place?
I would recommend resetting the mobile network settings, you can do this by going to Settings > System > Reset options > Reset Mobile Network Settings
In there you can choose which SIM slot you'd like to reset.
Friday
Yes everytime
I also tried factory resetting the thing but still nothing still says 'unknown sim card number'
Friday
Happend with me to. Also mentioned that in a thread.