Since last week, I have a problem with the reception:
- 4G internet connection works fine. (SMS too)
- but I cannot receive or make calls. When I try to make a call, there is no waiting tone beep, just silent and it says it is calling, and after 10s the call ends. If someone tries to call me, for them I am unavailable (as if the phone was turned off)
- When I switch “preferred network type” to 3G or 2G, first the “4G” symbol in the status bar goes away, then after 10s the signal goes to zero/not connected. On another phone, 3G and 2G get full signal with the same sim, in the same place.
What I tried:
I can reproduce the error in safe mode with a different (working) sim, with wifi, BT & GPS turned off. I tried both sim slots.
I tried cleaning the grounding contacts with the display module, with a needle, Q-tips and some benzine as described here:
and I checked the antenna connection as described here
but still the issue remains. Any Ideas?
My FP2 is running the Fairphone OS 19.11.2, and i use it in Switzerland.