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when switching from LTE to H+

Open 392a5237 opened this issue 2 years ago • 10 comments

Good afternoon. There is a problem, when switching from LTE to H+ and vice versa, VoLTE turns off IMS until you turn on airplane mode

392a5237 avatar Apr 26 '23 16:04 392a5237

Similar issue here. Using Pixel 6. The patch actually works. But every day morning the VoLTE is not working, even though the VoLTE setting is still On in Setting. Have to turn the SIM off and then on again. It seems the SIM on-off method works only after making a call which shows H+.

not-computer-guy avatar Apr 27 '23 10:04 not-computer-guy

Same issue, every time the phone goes from 4g (LTE) to h (eg. loss of good signal, elevator, parking garage ...) I have to reset the internet for the patch to work.

AndorKakas avatar May 16 '23 18:05 AndorKakas

Hello, The same problem, every time the phone switches from 4g (LTE) to H, H+, or E (for example, loss of a good signal), even when LTE appears, the VoLTE does not work, I have to reset the Internet, turn on the flight mode for the patch to work. VoWIFI working. Phone Pixel 7 Pro.

pilipenko179 avatar Jun 03 '23 12:06 pilipenko179

Same issue on SIM1 slot after using this app on my device "Nokia 8.3 5G". If i using SIM2 - its okay

How to fix SIM1, i have no idea. I cant use erase modemst1 on my device, because bootloader locked

Maybe some KEY_ response for that?

marsdoe avatar Jan 04 '24 11:01 marsdoe

Hey everyone, it seems like the devices lose connection to 4G (and hence 4G Calling) until you reconnect, which I presume the devices also forget to connect to 4G calling services. Can you try this and see what happens

  1. Call *#*#4636#*#*
  2. Open Phone information
  3. In the Set preferred network type:, set it to NR/LTE (if you have 5G available) or to LTE

This forces your phone to only use 4G and disables it from using 3G at all, but see if it improves coverage at all.

fillwithjoy1 avatar Feb 16 '24 11:02 fillwithjoy1

Just pinging again, to see if this is working for anyone. Also if you reconnect to 4G you can try and use the Restart IMS Registration button in the app

fillwithjoy1 avatar Feb 27 '24 09:02 fillwithjoy1

Good afternoon. installed LTE. They can't reach me by phone. Since the coverage is not everywhere.

392a5237 avatar Feb 29 '24 02:02 392a5237

Good afternoon. installed LTE. They can't reach me by phone. Since the coverage is not everywhere.

wdym by "installed LTE", did you change a system setting or what?

fillwithjoy1 avatar Feb 29 '24 02:02 fillwithjoy1

Yes, I selected LTE only settings. But I don’t have LTE coverage everywhere in my region.

392a5237 avatar Feb 29 '24 05:02 392a5237

Yes, I selected LTE only settings. But I don’t have LTE coverage everywhere in my region.

So then VoLTE cannot work because it relies on LTE

fillwithjoy1 avatar Feb 29 '24 05:02 fillwithjoy1