HD calling is not activated. The software version is still the latest, 2.0.217.0, and Xiaomi is not listening to us at all.
+1Reply
Mohamed AyaouJune 2, 2026 at 05:28 PM
Did it get HyperOS 3?
0Reply
SalmanSeptember 8, 2026 at 01:25 AM
No, the latest version is 2.0.217.0 and the company has really forgotten about this phone and even basic features like HD calling are not enabled.
+1Reply
MehranDecember 18, 2025 at 02:15 PM
I have been updating to the new version 2.0.210.0 for a couple of days, but I still can't activate HD calling in the settings. I activated this feature through the SIM card operator, but I also enter the code in the phone and activate the HD calling option in the settings. The networks are on automatic and the network coverage is 5g and 4.5g, but HD calling cannot be activated. You, by the soul of your father, activate this feature on the Xiaomi 12T phone. I am tired of leaving so many comments and reporting this problem to you. How old are you? You want to stop updating this phone with 3g calling. This phone has an advanced processor and features. Why don't the updates you release solve this problem? I am a Xiaomi 12T user.
+1Reply
AriaNovember 11, 2025 at 08:42 PM
Hyper OS 2.0.207.0 still can't activate HD calling, Mr. Xiaomi, don't you want to fix this problem?
+3Reply
salman maghsoudiJuly 26, 2025 at 08:37 AM
The new update 2.0.202.0 came, I installed it, but I still can't activate HD calling. I have a Xiaomi 12T. Xiaomi still doesn't fix software problems and says on the lock screen, animations, and all this nonsense, Mr. Xiaomi, I can't activate HD calling. I swear to God, I'm good at all Android settings, but I can't activate VoLTE in the system settings. I activated it from the SIM card and the operator, but no matter how hard I tried, it won't activate on the phone for three years. Don't you want to fix this problem? Do you want to play animations? God damn you. When I call, my phone changes from 5G or LTE to 3G network mode, and the call is made, and there is also an antenna jump on the Irancell operator.
+3Reply
KouroshMarch 31, 2025 at 11:04 AM
In the Android 15 and Hyper OS 2.0.2.0 update, I can no longer activate VoLTE. What kind of stupidity is this that Xiaomi is doing? I used to be able to activate it myself by entering a code. Now it is not activated by itself and there is no way or option in the settings to activate it. Please, Xiaomi, solve this problem. Really, in 2025, the user who makes a call must have a 3G antenna. This problem is present in all Xiaomi phones. In Hyper OS, it was possible to activate it manually with a code. Now it is absurd. Mobile phones that support two 5G SIM cards. When they make a call, the network goes to 3G. This shows all the nonsense that Xiaomi used to describe its software. Xiaomi is a stupid company that cannot even use the features that it has implemented in its phones. That is, an HD call is an option that is not important, but the phone has removed it. However, this option should be enabled by default so that the mobile phone can make HD calls while connecting to LTE and 5G internet. I'm just telling you, Xiaomi, stop this mess you've made. You should enable this feature by default on all phones with a Diamond and Snapdragon processor because there's no respect left for your garbage software.
+4Reply
Daniel AraniMarch 18, 2025 at 10:19 AM
Hyper os 2.0.2.0 now version update
+3Reply
salman maghsoudiMay 17, 2024 at 02:38 PM
I have this phone, everything is great, but it has a software problem. When I turn on LTE and 5G internet and make a call, the network mode goes to 3G and calls, and VoLTE and VoNR don't activate. Please tell Xiaomi this. It solves the problem. By all means, report this problem.
+6Reply
Salman.MaqDecember 6, 2023 at 10:05 PM
Android 14 and miui 14.0.7
+5Reply
RafaelAugust 1, 2023 at 06:13 PM
All excellent, but there is an error, the PWM is 1920 Hz, not 120 Hz.
