VoLTE option lost on CE 3.5.3

[Tony2k]

I'm on CE 3.5.3 and I can't see VoLTE settings, what's the problem? I broken it changing from stock 3.2.6/FreedomOs to CE?
Here two pictures:

 

[navazsayani]

I'm on CE 3.5.3 and I can't see VoLTE settings, what's the problem? I broken it changing from stock 3.2.6/FreedomOs to CE?
Here two pictures:

Hi Tony,
I was facing the same issue. Try putting your volte enabled sim in sim1 slot. It worked for me. Somehow oneplus messed up in 3.5.3 ce build.

 

[Tony2k]

I have only one sim and it's on first slot. I tried to flash back to 3.1.2 and after 3.5.3 but I can't still see VoLTE...

 

[NickosD]

I have only one sim and it's on first slot. I tried to flash back to 3.1.2 and after 3.5.3 but I can't still see VoLTE...

First slot of the tray or in sim1 slot? Cause the sim2 slot if I remember correctly is the outer one.

Sent from my ONEPLUS A3003 using Tapatalk

 

[Tony2k]

I'm using slot 1, I'm sure.

 

[navazsayani]

I have only one sim and it's on first slot. I tried to flash back to 3.1.2 and after 3.5.3 but I can't still see VoLTE...

I came from 3.2.6. On 3.5.3 i already had 'Enhanced Volte' option enabled, but Volte wasn't working. Switching my volte enabled sim to sim1 slot solved my issue.
Try clean flash maybe.

---------- Post added at 08:50 PM ---------- Previous post was at 08:49 PM ----------

First slot of the tray or in sim1 slot? Cause the sim2 slot if I remember correctly is the outer one.

Sent from my ONEPLUS A3003 using Tapatalk

You can find sim1 printed on the sim tray.