[Raspberry Pi Original Development] Sinnedan:
Thank you very much for your reply.

I thought I had described this in great detail, but I will be happy to describe the process:

For reference, I did a test run with the image "lineage-17.1-20210122-UNOFFICIAL-KonstaKANG-rpi4-atv.img".

Wrote the image "lineage-17.1-20210122-UNOFFICIAL-KonstaKANG-rpi4-atv.img" with "Raspberry Pi Imager v1.6.2" to a SD card.

Started RaspPi4 with image.

Disconnected with bluetooth by pressing Back, because the bluetooth search was in an endless loop.

Surface Lineage

Next > EULA ACCEPTED > Language German (Deutschland) > NEXT > Date & time GMT +1:00 Amsterdam, Berlin > Current date 21.11.21 > current time 17:01 > NEXT

Select Wifi > My Wifi (FritzBox) is displayed > Select your Wifi Network and Password > Connected Successfull

Location services ON > NEXT > LinageOS features ON > NEXT > Protect your phone > Skip > Restore apps and data > Skip

Android > Settings > Network & Internet > Wifi connected > Internet connection CONNECTED > IP address PRESENT > Signal strength EXCELLENT Proxy settings NONE > IP Settings DHCP

Using the same RaspPi4 and the same SD card with the image "lineage-18.1-20211026-UNOFFICIAL-KonstaKANG-rpi4-atv.img" 1.

Write the image "lineage-18.1-20211026-UNOFFICIAL-KonstaKANG-rpi4-atv.img" with "Raspberry Pi Imager v1.6.2" to a SD card.

Started RaspPi4 with image.

Disconnected bluetooth with back because bluetooth search is in an endless loop.

Surface Lineage

Next > EULA ACCEPT > Language Deutsch (Germany) > NEXT > Date & time GMT+1:00 Amsterdam, Berlin > Current date 21.11.21 > current time 17:58 > NEXT

Select Wifi > My Wifi (FritzBox) is displayed > Select your Wifi Network and Password works > And then... Couldn't find Wifi (FritzBox) :(

Since there is no skip, I have to stop cold here!

It finds my wifi, but I can not connect.

If necessary, however, I get on via Ethernet, for example to change settings!

Since I thought that Android may have lost my IP, I also tried with Ethernet.

Ethernet works, but then without Ethernet it again finds my WLAN (FritzBox), but it can not connect!

Also I found that I can connect to the personal hotspot from my iPhone X!

And of course I tried to implement the suggestions they proposed at their linked discussion (http://disq.us/p/2jwm95r). But the update solutions I found requires "raspi-config". So I wanted to update the chips on the board ,it Raspberry Pi OS. But as I know now, the update is also only on the SD card. Since there is no "raspi-config" in Android, I need a tip how I can implement this in Android! Surely there are also commands here that I can enter in the terminal!?!

Then I hoped that it is because of the country setting.

That's why I asked in the last post how and where I can enter the command from her post, because with me it gave the error message "command failed: Operation not permitted (-1)"!

What can I do to help with troubleshooting?

Should I create a log of yours?

Maybe you can also tell me which image you had as a template.

Then I can download the original image, try it with it and we can thus narrow down the error margin!?!!

Thank you very much for your efforts. :)

Maik