Force enable VoLTE and WiFi Calling

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MatiX575

Member
Nov 22, 2020
11
0
Hi!
I have Global version CPH2025, updated to Android 11 in Singapore EX region, but I can't turn on VoLTE and VoWiFi, it's just don't appear in settings. Under *#*#4636#*#* code is a VoLTE and WiFi calling option, but I can't enable it. I was trying to change software to different regions but with no result. In last phone OnePlus 7 Pro I turn this options in OnePlusLogKit, and this works for me for couple of months without problems, maybe in Oppo is also option to force enable it?
Thanks for any help!

Screenshot-2020-11-24-21-22-28-38.jpg
 

MirceaForce

Senior Member
Jan 26, 2016
254
28
romania
Hi!
I have Global version CPH2025, updated to Android 11 in Singapore EX region, but I can't turn on VoLTE and VoWiFi, it's just don't appear in settings. Under *#*#4636#*#* code is a VoLTE and WiFi calling option, but I can't enable it. I was trying to change software to different regions but with no result. In last phone OnePlus 7 Pro I turn this options in OnePlusLogKit, and this works for me for couple of months without problems, maybe in Oppo is also option to force enable it?
Thanks for any help!

have you tried this
https://www.91mobiles.com/questions/how-to-enable-volte-on-oppo-find-x

https://www.91mobiles.com/questions/how-to-enable-volte-on-oppo-find-x2-lite

https://support.oppo.com/nz/answer/?aid=neu1286
 

MatiX575

Member
Nov 22, 2020
11
0
Of course yes, as I sad VoLTE and WiFi Calling options is just not appear in settings, I tried 3 different carriers in Poland (PLAY, ORANGE, T-Mobile).
Screenshot-2020-11-26-10-45-55-52.jpg
 

a5ian300zx

Senior Member
Nov 6, 2008
382
44
London, UK
I was under the impression you ROM version indicates to a your service provider of the features you can have enabled on that phone.

Eg Vodafone UK only has select number of phones on their website that they enabled for VoLTE or WiFi calling. But these version would only work with specific ROMs.

Hence why I was holding off just to make sure on android 11.

Thanks
 

MatiX575

Member
Nov 22, 2020
11
0
Thanks for answer. I have heard about this before, but as i said in first post - on OnePlus 7 Pro I can force enable VoLTE and Wi-Fi calling - in default also that wasn't working. Carries in Poland adds supported phones very slowly, and mainly most popular phones. Neither OnePlus 7 Pro or Oppo Find X2 Pro aren't supported officially by three main carriers...
 

hunhool

Senior Member
The VoLTE/VoWifi is really interesting. Here in the Netherlands both were activated and being used until I received the last software update (carrier: T-mobile) since the update both aren't available.
Customer services said the device added, so maybe the latest software has some issue with it. No sure

Sent from my OPPO CPH2025 using XDA Labs
 

Munsterbuster

Member
Dec 26, 2017
20
0
So after upgrading my carrier plan in germany from LTE to 5G, I am missing also missing Wifi Calling which worked before. I have both options but I cant change to call over Wlan. If I press the button Wlan-Anrufe (which should bring up the selection), nothing happens.
 

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gaztom78

Member
Dec 22, 2017
26
3
Hi!
I have Global version CPH2025, updated to Android 11 in Singapore EX region, but I can't turn on VoLTE and VoWiFi, it's just don't appear in settings. Under *#*#4636#*#* code is a VoLTE and WiFi calling option, but I can't enable it. I was trying to change software to different regions but with no result. In last phone OnePlus 7 Pro I turn this options in OnePlusLogKit, and this works for me for couple of months without problems, maybe in Oppo is also option to force enable it?
Thanks for any help!

Screenshot-2020-11-24-21-22-28-38.jpg
*#*#4636#*#* doesn't work for me in a11. I've also flashed the Singapore rom running c.57
 

Rampage.73

Senior Member
Dec 4, 2020
71
1
then and since I updated to c.62 that the times does not work for me anymore or tried to do the ims code
* # * # 4636 # * # * and does not show me anything more someone knows the cause and can tell me how to solve it