Feature request - it would be nice to have this to reduce the strain on my eyes at night

@totalrando Google Voice works on my P2XL.

We are working on a sip solution to stand in for VoLTE. We've had some good progress this week.

@Andrisk Sounds like it got stuck on the update. Try this https://forum.pine64.org/showthread.php?tid=10130

Verizon VoLTE will work (ONLY) with the Pinephone/pro

For everything else, as others have said, until VoLTE gets worked out T-mobile and associated MVNOs are best. I've used Mint, Red Pocket, US Mobile. All worked fine.

For Nexus 5 PolarCell.

I've put a lot of work into it, and other than doing the Nexus 5X battery mod, no battery works better.

Has anyone figured out the problem with why android apps on the N6P open with a black screen? Because I think I found the problem - an incompatibility between stock anbox and arm64 drivers. According to the following requires a patched driver or to enable software rendering

https://forum.pine64.org/showthread.php?tid=8576&page=6

@tobsend Not currently. Would be a useful feature

@dingdangdoong UT does not yet have VoLTE enabled to make calls on Verizon. You will need to use an AT&T or T-mobile network until that is fixed. It is a work in progress, not yet known when that will happen.

https://www.xda-developers.com/ubports-gsi-brings-ubuntu-touch-to-any-project-treble-supported-android-device/

@doniks Thanks for adding 64 bit support!

@atarilinux You don't need 5g yet, but eventually as they transition more and more bands to it, and the remaining 4g bands become too crowded. That is why I suggested the OP N10/N20/n200/N300 which are 5g capable.

As far as VoLTE, in the US, the device needs to be VoLTE capable, and if the device is not capable of reporting it's location directly to e911, then the user must register a service address with their carrier before VoLTE or VoWiFi will function. It will be quite a while before our e911 systems are upgraded across the board to make location tracking mandatory (because e911 was left to the counties to fund, and a good number of them do not have the resources to convert to an automated system).

You do need a phone that is carrier certified for Verizon or AT&T. T-Mobile just requires the device be capable. They do not keep white lists, only block lists.

A couple of thoughts:

The OP6/T was one of the successful models in the original VoLTE experiment. It did not receive the final version because the porter is in Ukraine and the port is effectively abandoned. The OP Nord N10 now has VoLTE (24.04-2 daily) and the N100 likely will (same porter). Perhaps an updated port for the 6/6T would be worth your effort, or one for the OP Nord N20/30 or 200/300 as they are 5G models

There is renewed effort to get SIP completely functioning and integrated into the dialer. If that effort is successful, the existing port of the P3a could still be useful as a VoIP phone.

Which brings me to heresy - use Droidian with SIP, or Mobian or PostmarketOS (patches needed with Mobian to match PMOS) as VoLTE is somewhat functional (a work in progress) with P3a and OP6/T.

And since Mobian/PostmarketOS is mainline, you could confer with Oren (Pinephone/tab porter) to see how to build a mainline UT port for either of those two models

@CyBerT Plenty. Here's one

https://www.getdroidtips.com/oneplus-6t-stock-firmware-collections/

Here's another

https://xdaforums.com/t/rom-stock-fastboot-op6t-stock-fastboot-roms-for-oneplus-6t.3862516/

If you still have UT Recovery flashed to your device, you can use that. Personally, I just use msmDownloadtool. Going back and forth between UT, Mobian, PostmarketOS messes with your partitioning. It is often best to just use the factory tool to reset it - especially if you haven't flashed a ROM before.

@vverve 2g is still up in a lot of areas with T-Mobile. 2g & 3g are still up if you live under the footprint of one of the Baby Bell regional carriers. They are small and slow to swap out their tower hardware.

@CyBerT The easiest way would be to use the MsmDownloadtool and reinstall OS9 as described in the OP6/T section of this forum.

You could also flash it by using fastboot since your installation is not corrupted.

@theprivacydad Flash a factory image using fastboot.

https://android.gadgethacks.com/how-to/complete-guide-flashing-factory-images-android-using-fastboot-0175277/

@mafman97 You can install Windows to a USB thumb drive and run MSMtool from that

There is also a linux method somewhere in the OP 5 or 6 forums, but results are variable.

@atarilinux That (VoLTE on P3a w/ Mobian) is with q6voiced and 81Voltd. Last I read it is broken again. Although, P3a is almost complete with mainline linux (especially with PostmarketOS - has patches not yet upstreamed). Might want to talk to Oren (maintainer of the Pinephone) if you want to try making a mainline port of UT for the P3a. OP6 is functional with VoLTE with mainline (with occasional hiccups) and OP6T can also call, but still has audio issues w/VoLTE last I read. Considering the OP6/6T is unmaintained with UT, it could benefit from a new maintainer - halium or mainline.

@atarilinux See mautrix-telegram at matrix.org

@atarilinux With the exception of VoLTE, the P3a with the current 20.04 port is the finest example of what UT on a phone can be. I wish you the best of success with your updated port. Join us in the NA Issues UT Telegram group, and you'll have testers waiting to help when the time comes.