The global chip shortage is real... Been waiting for this phone to be available locally but so far only lazada carried this, and only by xiaomi china. Might be getting x3 pro instead and sacrifice the oled and better chipset. Sigh

Did u have volte enabled? If u have volte then u can just force vowifi by dialing *#*#869434#*#*

Basically it'll force vowifi swith to appear in Xiaomi phone setting regardless of telco support. Obviously also need telco support at their end too for it to actually work. After dialing the code then the vowifi toggle will appear in phone settings, enable it and see if vowifi icon appear in status bar. Then check by dialing out and receiving call. Test for a few days, see if your contacts complain can't reach u or not. If they complain then can redial the code again to reenable default behavior.

I did the same and it works fine. Contacted maxis cs to enable volte and vowifi but only volte enabled, vowifi switch doesn't appear on phone settings. Did the code, vowifi toggle appeared, i turned it on and tested for a week or 2. Now I've reset it to default behavior again and the vowifi toggle stays and vowifi still works.

Like i said, it also need carrier support. That ussd code only enable the vowifi toggle without carrier check but carrier need to already enable wifi sip server on their end. Contact maxis cs and ask them to enable it for your sim first. If the cs asked what phone u used, tell them its samsung galaxy s22 ultra.

They also said it'll be enabled within 24 hours after your request, so wait 24hour to do the ussd force enable vowifi toggle. If u straight enable it afterwards it might not be enabled on maxis end and sim not properly provisioned yet thus doesn't work.

This post has been edited by axxer: Feb 25 2023, 12:13 PM

So far it works fine. Can't say not buggy at all because i rarely make or take calls but when i did, it works.

Thats what I've already said. Of course need to call telco cs first and ask them to enable vowifi at their end. The switch can't magically make wovifi work without telco vowifi sip server.

Well not me personally, did that on my mom Xiaomi. What they said should be right, volte shared some tech with vowifi and if you already got maxis volte working, vowifi should be working too. Just that Xiaomi whitelist which telco to allow vowifi via the toggle. The ussd code only bypass the whitelist and show it on all sim without check.

Did it even work without airplane mode, like does the vowifi icon appear in status bar? Maxis vowifi is weird not like digi vowifi that can use while roaming outside malaysia to bypass incoming call charges by using vowifi in airplane mode. Maybe try with other wifi in case your wifi is the problem. Try with kfc mcd wifi or office wifi or something. I just tried on my own xiaomi, not the f3 but 11t, maxis vowifi still work in airplane mode can dial the 123 and hear the bot cs greeting but I'm not roaming.

This post has been edited by axxer: Feb 27 2023, 11:16 PM

Another way to check the current status of both volte and vowifi is by *#*#4636#*#*

Click which sim u wanna check, after few second 3 dot should appear on top right. Click it and choose ims service status. If you're currently connected to 4g tower with volte, the voice over lte status will be shown as available. If you're currently connected to wifi and vowifi is working, the voice over WiFi status will be shown as available.