@messayisto Thanks, Mate. So it needed two attempts to get it working again. I first tried the 0.5.1 Focal for UT 24.04 which also did not work. I ended up with the one for UT 20.04 which now runs smoothly.

Screenshot, made on 25-06-11, on a POCO X3 running UT 20.04 OTA-9.

@gpatel-fr Huh! A challenge like that. I'll try my best...

I want to inform you, that in the meantime it seems that the mysterious failure hopefully vanished after playing around with the settings. First of all I did a reset of the APN/ network-settings just to find that there are two options to chose from: {The providers name} and {The providers name automatically}. It occured that up to that time the chosen option has been just {The providers name} without the automatic option. Now I manually switched to the automatic one and expected no much difference. Surprisingly I received a handful of text messages sent to me within the last 48 hrs. Once more I tested some more sending texts from another device, just to remark that there are no missing messages up to now.

Just to make clear: I recently checked the APN-settings in non-automatic-mode and found them all correct. So I am still not sure of which things made the difference between the two options of chosing the provider.

Anyway, could be a happy end, I'll see. So dear admin, could you please the thread as (hopefully) solved? Thank you. HB

@gpatel-fr As I prefer using 2G most of the time, the LTE/VoLTE-thing should not be the reason of not delivering text messages most of the time. I once again checked the APN-settings just to find them correct. So at the moment I haven't got a clue.

Anyway, I thank you for your support.

@wally Thank you for trying to give me an advice related to missing text messages. I am on UT 24.04-1.1.

As I am following the threads and posts in this forum from time to time I already followed the path of the thread you mentioned with no improvement in the remarked behaviour. It sometimes sucks, because I frequently use text messages for 2-factor-authenification, when the code provided seems to be delivered to me, and I just sit and wait, and nothing happens. The workaround is to put the SIM-card every time into another device, which is kind annoying.

Anyway, you mentioned that you do have found also some things on the N10 not working correctly, which I can confirm. Despite that device is still my daily driver, but seem to have some more things to be fixed related to my former companion, a now slightly damaged POCO X3, which runs more smoothly. Although the flickering of the screen of the N10 I can not confirm.

Since I changed from a POCO X3 (UT) onto a Oneplus N10 the rate of successful delivery of incoming text messages is slightly less the 50 per cent. Outgoing texts seem to be delivered by 100 per cent.

The strange thing is that when putting the sim into other devices (UT and Android based), the text messages are coming in without any problems or delay. I do not have any idea of what could be the reason of that behaviour. Any hints or suggestions would be appreciated.

@messayisto Thanks, Mate. So it needed two attempts to get it working again. I first tried the 0.5.1 Focal for UT 24.04 which also did not work. I ended up with the one for UT 20.04 which now runs smoothly.

@messayisto Could that be done in the terminal, there seem to be no option to downgrade via OpenStore itself?

@messayisto I can confirm that behaviour.

@MrT10001 SUCCESS! Following your instructions the upgrade went trough within a quarter of a hour and is now on UT 24.04 stable. The only issue on that way was that the UT installer recognized the devices variant "lito" as unknown, as mentioned in another recent thread. Ignoring that the installer worked perfectly. Thank you very much @MrT10001!

Anyone who can mark this topic as solved is encouraged to do that.

I am an owner of two mobile phones running UT. While the upgrade from UT 20.04 to 24.04 on the Xiaomi Poco X3 NFC was successful within a couple of minutes, the Oneplus N10 failed to boot and got stuck at the "bootloader is unlocked" screen. I have been waiting for a hour or so and tried two more times, but to no success.

As I plan to get the N10 back to life, I am not sure on how far I have to go back, remembering the installation process some months ago, when I had to install Oxygen 10.5.7 first to make sure, that the correct firmware is present. Do I have to flash Oxygen again, or is the firmware still on the device since UT 20.04 has been installed, so that I immediately could start the UB installer?

Furthermore I am not sure, if USB-Debugging is active by default, so that flashing is possible.

Is there anyone who could give me a helpful answer or advice? Thank you very much in advance!

Harry