USSD Codes not working.

[shiv1g]

My phone is not working with the USSD codes ( e.g *111# , *121# ) on both the cellular networks JIO and Vodafone IN. It shows an error of Connection Problem or Invalid MMI code. Last time when i used them about 2 weeks ago they where working perfectly fine.
I tried restarting the phone several times, toggling the airplane mode on and off, etc.



I'm on the latest .73 update.

[_jis_]

Are you using default Asus dialer?

[shiv1g]

_jis_

Are you using default Asus dialer?

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Yes!

[_jis_]

So then dial *#06# to get dialog with your IMEIs.
At least this works?

[shiv1g]

_jis_

So then dial *#06# to get dialog with your IMEIs.

At least this works?

View post

These codes work as these are smartphone specific and not with the cellular provider. I don't have to press call button (SIM1,SIM2) after typing in.
However, USSD codes run on network level.