Thank you both, I found it: echo 10 > /sys/devices/platform/soc/5e00000.qcom,mdss_mdp/backlight/panel0-backlight/brightness - this is how I can manually change the brightness...

Next I'll see if I can modify somewhere the minimum value that the slider can adjust so that I will use the slider in the brightness menu and not the command line.

You know what? - just before uninstalling it I checked it again and, upon activation, it worked! Maybe meanwhile I restarted the phone but I'm sure I restarted it before and it didn't help... Anyway, I'm very glad it works now! Thank you!

This is what I did and I have now a working device! Thank you for the push 😉

Thank you!

@mihael Logic would point to the Whatsapp side if another webapp was able to open images directly in gallery.

@mihael Wow, then I guess this should be logged as an issue in Gitlab. Music files shouldn't be scanned from Videos directory since the Music app doesn't have access to it

Yes, just use a second smartphone for WhatsApp. The Waydroid thing is good, but I've also had problems like this with other manufacturers. Sometimes it works and sometimes it doesn't. Or ask in the support channels for Waydroid in Telegram. It's just too annoying to wade through 100 groups. You get used to Google and Android by necessity, so to speak. Many people still use the WhatsApp data cracker.

@mihael Got Brave Browser and Gimp up and working, however the fonts etc are incredibly small.

@kugiigi Wonderful!

@gdegrez 👍

@mihael Not specifically for this problem, but it's better to avoid dragging around some Xenial slags.

@Keneda Good, thank you!

@stanwood Yes, that's something I forgot to mention: I'm on stable OTA23.

Thank you so much everybody for helping and guiding me in the right direction!

It turns out it was a wrong setting in the APN: it was "internet" but it should have been "broadband". I got the correct settings from https://apn.how/romania/telekom-ro

Now I have data roaming. Thanks again!

@mihael
Yes, that could be a good idea.
But I'm not sure if any device has autofocus working...
But that's not a feature I need as I always select my subject so get the exposition required.

@arubislander Hey, it worked!!! It took less than five minutes! Thank you!!!

@mihael I think you should try to switch to RC with the installer (don't erase your data).

Find the index number of the multimedia client with pacmd list-sink-inputs

then mute it (the multimedia client) by running this command: pactl set-sink-input-volume <index num> 0%

@kugiigi Hello again.

Through evtest I can monitor /dev/input/event2: tri-state-key but then I don't find something similar anywhere in gsettings... I am stuck here and any hint in the right direction would be much appreciated!

Thank you!