Ok, then it's roughly the same level that I am at. Can you report back when you have your LTE plan? Not sure why the Ok Google detection is greyed out though. But I had similar issues with the Note 4 ROM as well, might be related. I find it rather convenient to use, so I will probably make sure it works. Flashing the vbmeta.img doesn't change anything though. It results in a boot loop though if you flash the Pixel one back. I will leave it at the one from the GSI ROM until the next flash. But then the bugs, voLTE still with a question mark, seem to be the same. Any idea where the official Pixel Experience thread is?
I will check out that GCam port. What I heard of until now is ANX, but I never heard of that one before, so I was wondering what you use.
I must have forgotten that the ROM has a link as well. I never used it since the official version came out.
I switched over to a different cellular provider (Koodo Mobile) with an LTE data plan about one week ago. The VoLTE option in the official Pixel Experience Plus ROM is still enabled but I'm not sure if VoLTE is actually in effect because the signal icon does not show LTE when I am on a phone call and using data simultaneously. I have LTE / WCDMA as my preferred network type because voice calls don't work if I set it to only LTE. The main developer of the official Pixel Experience ROM (ctwoon) has not created a thread for it on XDA. I also tried enabling WiFi calling but did not notice any difference and it's probably because my cellular provider does not sell Xiaomi phones or support that feature on these devices.