Xiaomi A1 is LTE-A cabable.

RoSk0BoSk0

Member
Sep 13, 2015
28
23
0
Pleven
Which command did you use to enable VoLTE via ADB?
You need temporary root for them, there are many guides for that.

This goes after successful "adb shell"
Code:
$su
#setprop persist.dbg.ims_volte_enable 1 
#setprop persist.dbg.volte_avail_ovr 1 
#setprop persist.dbg.vt_avail_ovr 1
#setprop persist.dbg.wfc_avail_ovr 1
Other threads suggest these too, but haven't done them. I've had network fluctuations with them, but YMMV.

Code:
#setprop persist.radio.rat_on combine
#setprop persist.radio.data_ltd_sys_ind 1
#setprop persist.radio.data_con_rprt 1
#setprop persist.radio.calls.on.ims 1
Credits to: @ToucanSam [MODULE v17.x] VoLTE & VoWiFi Enabler (2018-09-20)
 

justanpotato

Senior Member
Jan 31, 2015
98
9
8
Seems to work here. Stock 9.0, only used ADB to enable VoLTE and remove carrier check.

I believe it's more a carrier side to support it.

My carrier supports it. But for some odd reason its not working at all.


My previous phone s6edge+ had no problems with connecting to my carrier LTE-A network.