westside03
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To manually enable VoLTE on your Xiaomi phone, you may want to try:
For Xiaomi phones with Qualcomm Snapdragon processor
1. Disable VoLTE carrier check on your Xiaomi phone.
Dial ##86583## on your Xiaomi phone dialer. You will receive a message at the bottom of the screen stating, “Volte carrier check was disabled”.
2. If the above still doesn’t work, try saving the IMS APN profile on your Xiaomi phone along with the APN profile.
NAME: IMS
APN: IMS
APN TYPE: ims,ia
For Xiaomi phones with MediaTek (MTK) processor:
If you are using a Xiaomi phone with MediaTek (MTK) processor, such as Redmi 6, Redmi 6A, Redmi Note 4 MTK etc., look below for steps to activate VoLTE manually.
1. Disable VoLTE carrier check on your Xiaomi phone.
Dial ##86583## on your Xiaomi phone dialer. You will receive a message at the bottom of the screen stating, “Volte carrier check was disabled”.
2. Dial ##4636## to access system menu.
Choose either Phone info1 (SIM 1) or Phone info2 (SIM 2), depending on which slot you have inserted the SIM card in.
Enable 'Turn on SMS over IMS' and 'Toggle DNS Check - 0.0.0.0 allowed'.
3. Install MTK Engineering mode app from Google Play Store.
Run the app and choose MTK settings.
Under Telephony tab, go to BandMode.
Select either Sim 1 or Sim 2, depending which slot you have inserted the SIM card in.
Then choose 'SET' and go back to Telephony tab.
Go to IMS. Scroll down to 'VOLTE SETTING', select 'CMW500 setting' and 'SET' it.
For Xiaomi phones with Qualcomm Snapdragon processor
1. Disable VoLTE carrier check on your Xiaomi phone.
Dial ##86583## on your Xiaomi phone dialer. You will receive a message at the bottom of the screen stating, “Volte carrier check was disabled”.
2. If the above still doesn’t work, try saving the IMS APN profile on your Xiaomi phone along with the APN profile.
NAME: IMS
APN: IMS
APN TYPE: ims,ia
For Xiaomi phones with MediaTek (MTK) processor:
If you are using a Xiaomi phone with MediaTek (MTK) processor, such as Redmi 6, Redmi 6A, Redmi Note 4 MTK etc., look below for steps to activate VoLTE manually.
1. Disable VoLTE carrier check on your Xiaomi phone.
Dial ##86583## on your Xiaomi phone dialer. You will receive a message at the bottom of the screen stating, “Volte carrier check was disabled”.
2. Dial ##4636## to access system menu.
Choose either Phone info1 (SIM 1) or Phone info2 (SIM 2), depending on which slot you have inserted the SIM card in.
Enable 'Turn on SMS over IMS' and 'Toggle DNS Check - 0.0.0.0 allowed'.
3. Install MTK Engineering mode app from Google Play Store.
Run the app and choose MTK settings.
Under Telephony tab, go to BandMode.
Select either Sim 1 or Sim 2, depending which slot you have inserted the SIM card in.
Then choose 'SET' and go back to Telephony tab.
Go to IMS. Scroll down to 'VOLTE SETTING', select 'CMW500 setting' and 'SET' it.