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Unable to use USSD codes

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Nobody07

Senior Member
Sep 7, 2010
57
8
Hello,

I recently wanted to activate VoLTE/VoWIFI on my OP7.

This made me reinstall the oneplus logkit.

before AND after doing this I realized I was totally unable to use any USSD codes on my phone.

For instance typing *#800# or 801 or whatever gives me something like "Connexion issue or IHM code not valid" ( translated from french).

I'm not sure if this issue can be related to https://forum.xda-developers.com/oneplus-7/help/sim-card-connection-acting-10-3-update-t4030031

I don't see how, but maybe you guys see something I don't.

Thanks for your attention :)

Edit: I'm using the Google dialer. And I am in 2G/3G/4G automatic. I also tried 2G only and 3G only.
 
Last edited:

strongst

Senior Moderator / Developer Committee
Staff member
Sep 18, 2007
12,693
13,084
thank's
HTC Desire
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Hello,

I recently wanted to activate VoLTE/VoWIFI on my OP7.

This made me reinstall the oneplus logkit.

before AND after doing this I realized I was totally unable to use any USSD codes on my phone.

For instance typing *#800# or 801 or whatever gives me something like "Connexion issue or IHM code not valid" ( translated from french).

I'm not sure if this issue can be related to https://forum.xda-developers.com/oneplus-7/help/sim-card-connection-acting-10-3-update-t4030031

I don't see how, but maybe you guys see something I don't.

Thanks for your attention :)

Edit: I'm using the Google dialer. And I am in 2G/3G/4G automatic. I also tried 2G only and 3G only.
Try to use stock dialer and make sure you did not deleted any system app for testing.