Now the SMS are working well, i can see the messages and the history

@mjosenhans the phone says, that all apps are up to date, so nothing happens, on download or anything else. It's the same on volla tablet.

Hello!

Many apps no longer run for me (I realize that the app programmers fix this). Dekko2 starts, but does not display the individual messages as soon as you click on them. SMS starts, but and I get messages, but as soon as I open them from the notification bar, they are gone. The history is not displayed either. I can send messages - they also reach my “test partners”, but they are no longer displayed in my history. If a recipient hadn't told me that they had received messages from me, I wouldn't know, because after “sending” they have disappeared “without a trace”. I still have the problem that only “2G” is possible on my Volla 22 after every restart. I first have to go to the settings and randomly enter the password for the APN. Once this is done, I get LTE. Bluetooth headset no longer works for me - even with old paired devices. Neither my already paired car radio nor my headphones want to connect to my Volla 22. The same applies to my Volla tablet. It's quite liberating when you can't use normally “restricted” devices at all, except for rudimentary browsing and phone calls. Unfortunately I am not a programmer, otherwise I would be happy to support you. So it only works monitarily. Best regards

Volla 22 UT 24.04 (r383)
Volla Tablet 24.04 (r177)