wlan0 Cannot find device

[systemcrash..]

My Pinefone 64 with a early mobian (upgrade with apt) work very good.. then it crash..

I can't rebuilt mobian with timeshift.. at this time wlan and bt work.. 
I install the latest mobian.
Mobian 20220621 run, but wlan and BT dosen't work..?
I tried a old mobian again, and nothing.. WLAN and BT dont work.

What is wrong with wlan and bt?

Michael

Code:

ip link set wlan0 up
Cannot find device "wlan0"

nmcli dev
cdc-wdm0 gsm disconnected
enx0000000005d1 ethernet unavailable
usb0 ethernet unavailable
lo loopback unmanaged

[systemcrash..]

Can I upgrade the Firmware for the WLAN and BT Modem?

Is it the LTE Moden and Wlan and BT the same device?  

Michael