Continuous disconnect RoamV2 with phone

Hopefully anyone can help me. My new Roam V2 worked well for about 6 weeks, but a problem suddenly arose with the connection to my phone. Since I am about to do a multi-day gravel packing trip, I am now a bit panicky. I cannot download maps/instal sensors/send route via app.

Issue: As soon as I want to do something such as setting a sensor, downloading a map, the connection with the phone is disconnected, then connected again for about 5 seconds and disconnected again and this repeats ad infinitum.

The strange thing is that during the installation (In trying to fix the issue i deleted Elemnt app from phone, installed it again and connected the RoamV2) there is and remains a stable connection between Roam and phone. (Although it is noticeable that downloading countries seems to take forever. After about 4 maps it seems as if the download stucks because there is apparently no more progress, in other words the list of countries/maps remains in queue status.)

What have I already tried:
I tried everything I could find on the internet to troubleshoot and think of myself, including:

  • blue tooth tested for operation with another device (car radio)
  • blue tooth reset on phone
  • blue tooth tethering enabled
  • factory reset
  • looked for updates (firmware was already up to date)
  • disconnected and connected again
  • deleted the phone app and reinstalled it
  • backup restored
  • tested with another phone

I have a Samsung S10e

Shoot!