'problem with network' requires reboot for next call

REPRODUCIBILITY (% or how often): very, very often
HARDWARE (Jolla1, Tablet, XA2,…): JP-C
REGRESSION: (compared to previous public release: Yes, No, ?): YES


After an in- or outgoing phone call using a Telekom SIM in slot 1 or 2 JP-C immediatly wants to reboot to solve ‘network problem’. Calling via that SIM is no loger possible.


  • developer mode and updates not activated
  • autoselect network
  • network preference 4G if availiable
  • network condition (CSD tool): Vodafone 2G (41), Telekom 4G (52)
  • other SIM slot filled with Vodafone SIM
  • mobile networking active (LTE)


  1. make/take a phone call via Telekom SIM
  2. watch display
  3. try to make/take next phone call via Telekom SIM


no message, calling possible


error message, calling via Telekom SIM no longer possible (until reboot)


(Please ALWAYS attach relevant data such as logs, screenshots, etc…)

  • logs/pictures not availiable
  • after call network is sometimes displayed as 2G for some seconds
  • tested same Telekom SIM in JP-1 using previous Sailfish version 3...20 - no problems
  • yes, Telekom prepares her 5G network in Germany, what apparently reduces 3G availiability somewhere and influences 4G avaliability sometimes, but Vodafone does the same and the ‘problem with network’ started with installing Rokua on JP-C

pls feel free to advise for setup and testing to gain logs for help


I have a identical problem with Lycamobile network in Poland on XA2. It was working fine for 2 days after brand-new install of Sailfish and now every call requires restart.

Identical problem here on a XA2 (single SIM) on the O2 (Telefonica) network in Germany. Developer mode is activated.

Additional oberservation:
After a reboot, making a call actually works, but for the first call after the reboot the phone app does not show that a connection was made but reports a network error as before of the reboot. Yet the call is connected.

I also have this notification on my XA2 quite often. I notice sometimes troubles with calls but I don’t need to reboot for that reason. At least I don’t remember that now.

I created a “night mode” in Situation app which among other things also switch to 2G which might help to reinitialise modem.

Does “Flight mode and back” workaround helps at least partially?

I also have this problem on my jolla-1 after rouka install.
Before I could do as the above to just reboot the device.

Now that stopped working to as a workaround.

so know It shows i got full 4g-connection but cant make a call or get sms messages on the phone anymore.

So its an heads upp that the last firmware is not super stable.