Hello.
I am using the Sony Xperia X (F5121)
UT 20.04rc (2024-W03)
Error that I have noticed when using the device:

• For incoming and outgoing calls, when mobile data is activated, the call still interrupts the mobile data connection. It cannot be re-established in the current session. A restart is required.
  Everything is OK with a Wi-Fi connection.

• Like Sander, I also don't see any charging information on my lock screen, even though it is activated in the Settings app.

• Everything is OK when I start the camera app.
  The selfie camera works perfectly.
  But with the front camera, a wide strip appears in the centre of the picture from halfway through the zoom.
  It is not visible in the photos, but it is recorded in the video recordings.

@los-tioz said in Sony Xperia X loses Wifi Connection:

In addition, the phone now hangs when booting sometimes at the Sony logo and sometimes at the Ubutu touch start page. It takes sometimes 4 attempts until it boots up.

The startup problems have been resolved with the update OTA-25 v2.
Has anyone updated Ubuntu Touch from version 16.04 to 20.04? Is the problem with the Wlan also present there?

Hello friends.

After a long time I find the time to write again. How is the problem with you?
Since the upgrade at the beginning of April to OTA-25 I have the feeling with my Sony Xperia X (F5121), the problem with the wifi module has become even worse. Now I have to restart the phone even more often during the day. In addition, the phone now hangs when booting sometimes at the Sony logo and sometimes at the Ubutu touch start page. It takes sometimes 4 attempts until it boots up.

Hello friends.
I installed Ubuntu Touch 16.04(OTA-23) on my Sony XperiaX (F5121) 3 months ago. I also have serious problems with the wifi module or its driver.
However, for me it is a different error pattern. When I leave the range of my wifi network, Ubuntu reconnects when I come into range. Everything is okay.
But if I am connected to my wifi for several hours (often after 2-3 hours), Ubuntu shows me I am connected but no app updates and starts. As if there is no internet connection. Only the terminal starts. But if you enter a command and press enter, the courser just jumps to the next line. The worst thing is that at this moment you can't be reached by phone! The caller hears a dial tone, but my cell phone does not ring and does not show an incoming call!!! A reboot doesn't work either, the phone shuts down but doesn't start anymore. A start now only works in combination of the power button and the + volume button.
Sometimes everything works now again for a few hours and I get a missed call. Sometimes I have to turn off and restart my phone several times, because Ubuntu now does not recognize and display any wifi network at all.