yashsingh1/xdaforums huggingface dataset:
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Texantx:
Uninstall or disable YouTube app. and install this one :

https://www.mediafire.com/file/u0kuuwyo1yyp1vc/iYTBP-v12.49.55-arm.apk
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] MasterMindGamer:
This App has worked. Thank you very much :) :) :D
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] obtuce:
Holy cow man. This rom is freaken stable for such an early release. Thanks alot mate for putting this together.

Listening to some Biogenesis for you psy_man ;)
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Veritas06:
I'm another one having problems with Calls working... At first I thought I had a hardware issue, flash from the Stock Beta MIUI to this, phone was working, restored apps, phone stops working. Never dials out & can't receive incoming. I guess it's one of my apps, so I just flashed clean again, & pretty much installing apps one-by-one... Not sure if anyone else with this issue has noticed it after a certain app was installed.

I'm also on Project Fi, so not sure if that is giving me extra grief as well.

EDIT: Just rebooted for the first time after the First Run Wizard, & back to no calls. Looks like [MENTION=3342600]thechopster[/MENTION] & I have the same problem.

I flashed all from the front page:

sean.mcadam@br41n14c:~/Desktop/lithium$ ls | grep -i zip

GoogleDialer-FIX.zip

Magisk-v15.4(1540).zip

PixelExperience_lithium-8.1.0-20180207-1638-UNOFFICIAL.zip

lineage-15.1_firmware_8.1.4-lithium.zip
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Texantx:
I had same issues with network & phone. The Fix did not help, so I gave up until next build. I am with xfinity mobile which using verizon network. But its working fine with AICP Oreo build by [MENTION=5657304]gavin19[/MENTION].
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Veritas06:
Awesome, thanks for the heads up on that. I'll give it a shot & see if I get lucky too.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] :
mi mix proximity sensor fix

Hello,

https://review.lineageos.org/#/c/204332/ shows the newest commits in terms of proximity sensor.

Devs can now have a look for required drivers for the Elliptic Ultrasound Sensor that is used on mi mix.

msm8998: ultrasound: Initial open source hal for Elliptic Ultrasound

* Needed for proximity sensor on Xiaomi Mi MIX

[Arasthel]: Make required changes for Mi MIX 2 implementation

[mikeioannina]: Remove unused code

Change-Id: Iaef2266bc1b853d7a9d1e2a906014c6c91019d5f

Signed-off-by: Balázs Triszka <balika011@gmail.com>

[MENTION=484058]psy[/MENTION] and Devs could you exchange knowledge and provide a PixelExperience build where proximity sensor is fixed? Im pretty sure everyone is waiting for that currently its the only thing that hinders me using this rom currently. Except that its AMAZING.

Thanks in advance
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] albertoduqe:
I am no expert and would need to look better at it but Mix is 8996 not 8998....

Maybe the sensor is the same but I don't think technology is the same in Mix 2, right?
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] :
Tested with many independent sensor apps. all report that mi mix has this elliptic sensor. there arent many companys that do this kind of sensor. Proximity sensor is sonar and behind the lcd on this phone. http://www.ellipticlabs.com/home/ is the manufacturer.

Im 100% sure we can use this source for our mi mix sensor.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Obelyzko:
Mi phone gets extremely hot in the right superior corner when i'm not doing nothing. Anyone with the same problem?:confused:
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] L45TK1NGS:
google camera dont work ... keep stoping and any issu to remove the animation on navigation bar google animation like turn on or turn off ?
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] rainfactor:
Not sure if anyone has tried to install Netflix but seems to be missing from the PlayStore when searching for it

I get all kinds of related Netflix apps but not the real deal :D

Guessing the build.prop is somewhat reporting something weird but I didn't check. I ended up downloading the apk and installed manually
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] thanhdat:
thanks a lot for the great work ! is this Treble compatible ?
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Ultraman666:
No issues here
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] metalcerb:
Netflix not showing on playstore for all devices with root or custom roms, it's a safety measure.. Just go to apk mirror and donwload Netflix apk from there.

Enviado do meu MI MIX através do Tapatalk
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] rainfactor:
Thank you for all your replies! :good:

Not a big deal, I installed it manually like I said but it just threw me off :D

I just found weird, I have been running custom ROMS for years and this is the first time it happened to me .

One can only learn every day.

Cheers
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] usb7:
Netflix won't show up unless you pass SafetyNet. Installing Magisk will allow you to bypass it.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] LormaD:
WoW, awesome... just Awesome.

I really like it. I am coming from mui (way back), global, epic, lineage, and the last one, Viper (which was the smoothest and nicest by far).

But this is just Sweet Gold. Smooth, nice interface (Viper started freezing and jamming when in phone mode) and so far works bug free.

I had only one incident of it not connecting to handsfree on bluetooth to my car, even though the device was connected, the sound was not coming threw.

I have only an occasional alert that google crashes, and if I want to send a report.

Cheers
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] brambizimski:
Anyone who can recommend some customization xposed modules for this rom? Can't find an option anywhere to swap the back and recents buttons
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] bark1234:
You can do that without even root.

https://www.xda-developers.com/how-...icons-or-re-arrange-the-buttons-without-root/
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] ephonym:
Has anyone else resolved the no incoming calls issue? I can't receive incoming calls at all. Did a full wipe - firmware upgrade - google dialer fix. Nothing - multiple attempts as well. Any help would greatly be appreciated!
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] drotaru:
What firmware did you use ?
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Hunter Mossberg:
You can try reinstall Google dialer and set it as default i Settings > Apps & Notifications > Advanced > Default apps > Phone app

All credits to [MENTION=5657304]gavin19[/MENTION].
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] ephonym:
Appreciate the suggestions.

Firmware 8.1.4, Uninstalled Phone app, reinstalled Phone app, confirmed it was default app.

Also tried third party phone apps with the same issue. Anything else?
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Sonorix:
Did you solved the issue and if, how?!

I´m faceing the same problem.

I came from scratch because I want an unencrypted device, so I use "fastboot format userdata" at first.

[MENTION=309187]edit[/MENTION]:

Solved, just mount the firmware partition in TWRP! Found the answer in the RR thread...

[MENTION=309187]edit[/MENTION]2

Did not work, now the G logo shows but no change after that. Any ideas?
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] craig.buckie:
How many people are getting crackling speakers? (And it doesn't seem to be in every app, just a few of them). Read a couple saying they did. Headphones no problem.

Any fixes?
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Harissonjj:
Leg

No meu mi mix deu leg no áudio e os vídeos ficam travando :crying: como faço pra consertar ?
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Mareto45:
Não tive problemas com os v
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] thechopster:
I still haven't figured out the no incoming calls issue. Like I mentioned previously in this thread, I would get incoming calls and everything worked fine with the initial flash but once I have to reboot, for whatever reason, I lose incoming calls. Just wondering which carrier you guys use? I'm on T-Mobile. I tried messing with APNs but that was a no go.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] ephonym:
I'm on MetroPCS which is T-mobile as well. Also tried messing with APNs and wifi calling. Can anyone else confirm incoming calls are actually working for them? If so are you on the T-Mobile network?
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Ultraman666:
Flashing it tonight i will let you know as I am on TMobile as well
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Blurred00:
Can i install this on mi mix 2?
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Psy_Man:
Fixed for next release.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] godofdeath1:
why camera not have HDR?
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Abu25:
Is it just me, or device is getting pretty hot with this rom no mather what you do( Browse internet, browse through phone...etc)?
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Ultraman666:
I can confirm I do not get calls on T-Mobile but I can make calls, I flashed Google dialer fix......
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] dj69holland:
i have T-Mobile (Poland) on SIM1, seems calls work for me using google dialer (incoming and outgoing), but only signal is abit weaker on LTE than on MIUI, but this was also the same on nougat LOS or ACIP builds.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] ephonym:
As it stands, incoming calls for T-Mobile USA is broken on this build. Wish I could stick to Pixel Experience, but sadly cut my losses and moved onto ACIP. Hope the bug eventually gets resolved!
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Vkboy:
Hey [MENTION=5736124]Psy_Man[/MENTION] can you developed pixel experience Ron for mi mix 2 also? Please
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Abu25:
Bugs

Here are some bugs I've discovered so far:

picture in picture not working

fullscreen mode (I cannot figure out hot to set it up like it was on lineage rom)

device is getting pretty hot every time I am using it

equalizer is crashing

second sim card is not working after reboot( I must go to menu and click on it and then it asks for PIN)

Battery is not that good as other are saying.(I am getting around of 4h SOT with a full charge and usually it last me a 26 hours of moderate usage).

Other than this all seems fine ( oh I have forgotten proximity sensor which is not working).

Beside the fact the device 8s getting hot I am pretty pleased of this rom. Thanks Psy!!!
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] doctahjeph:
No picture in picture issues here. I assume you mean with YouTube? Are you a YouTube red subscriber? I heard you have to sub to YouTube red to be able to do picture in picture.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] billy_overheat:
Just download iytbp and you can use picture in picture.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] ChodTheWacko:
I have t-mobile USA and have no problems getting/making calls.

EDIT: I have to take that back, you're right, I can't receive calls!

EDIT2: Whatever it is, it's an LTE problem. If I disable LTE either by Settings - Network & Internet - Mobile Network, or forcing 2g with network signal guru, then I can receive calls.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] dj69holland:
Anyone been able to get one of Viper4Android, MusicFX, AudioFX or Dolby to work?

MusicFX just forcecloses on me, and V4A (both versions) cant install driver due to I/O error..am i the only one?
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Selectaa:
Wow! This ROM is great!! Excellent effort. I like the clean feel without too much customization (came from RR).

I did have one problem initially, and that was the the Camera app that would crash on launch and in the background. I solved this by uninstalling it and installing the latest version I found in the store (5.1.018.177470874). Works great now! Big thanks!
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] rrat:
To improve battery life considerably change each app permissions, in settings & stop each app running in the background, as you can do with Oreo.. I've gone from 4hrs SOT to about 8?
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Vkboy:
Please sir develope for mix 2
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] gavin19:
Send a PM and don't keep posting in this thread.

I didn't realise things were that bad for the Mix 2 that they're trying to steal Mix devs. How is it possible that the Mix 2 actually has even less Oreo ROMs than us? If you discount the MIUI ones then they have none at all. Sad!
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Vkboy:
Ok.yes I also feel same
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] MasterMindGamer:
Hey,

Has Anyone else some problems with the cast funktion?

Its not working for me :(
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] heroflex:
I'm getting speaker phone echo. Is anyone else getting this?
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] ChodTheWacko:
The Mix 2 was more conservative and it kind of cut back on some of the things that made the Mix 1 unique.

It honestly wouldn't surprise me if the Mix 2, overall, sold less units than the Mix 1.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] metalcerb:
I can't understand why we are talking about mix 2 on this thread..

Enviado do meu MI MIX através do Tapatalk
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Hen Ry:
There are several for the Mi Mix, but they all have the same problem and do not work properly.

It does not help if you create an Oreo and that's it.

Pappschlumpf has made a lot of effort and invested a lot of time to make it work.

But without having a Mi Mix, it's impossible to get an Oreo to work properly.

This applies to all Oreo's, not just this one.

[emoji50][emoji848]
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] gavin19:
Couldn't find any sales figures, but based on the views/replies on their posts it probably did. More surprising to me is that the Mix/Mix 2 128GB models are both selling for almost identical prices even though it's better than the Mix in all but screen/battery size. Also, I found quite a few Mix ripoffs (Oukitel/Doogee/Vkworld) that are all selling for less than half the price and they have similar or sometimes better specs (improved cam/SD card support/even bigger battery), but all use the 5.99" screen and not the 6.44" one. None of those were around before so I'm sure they have ate into the whole bezel-less market.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] E50AK:
Nope.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Psy_Man:
GO AWAY.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Vkboy:
Thank you for your kind words. But really disappointed by your reply. You could use I cannot develope....... Or some other reply but your reply showed your how you are as a human being.

Regards
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] omerbagi10:
Just dont start crying.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] admirdante:
Go back to your own subforum and cry there to the devs. Geez.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] doumer:
anyone tried magisk 16 with this rom already? tried it yesterday on my pixelc and got a soft brick (after reflashing partitions in fastboot it's all working again with magisk 15.3, but won't try magisk 16 on my mix until I'm pack at my pc again...)
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] albertoduqe:
Guys from Mix2: if you have a single oreo rom out there, oreo sources for your device must be ready. Get them and compile something yourselves. Get dirty!

I complained a while back the lack of development for the Mix and immediately decided I could somehow remedy that and Cardinal Oreo is out and more are coming. They're buggy and I have no idea of how to fix things when they come up but well man, this is the works.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] paulrgod:
Working fine for me.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] usb7:
This ROM works beautifully for me. No issues. I don't make calls so I haven't even noticed that the ultrasonic proximity sensor doesn't work. Light proximity sensor works for auto brightness.

Works fine for me.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] nenepok:
Hi there, I love this ROM. Very smooth. One noob question, the notification doesn't stop until I've acknowledged it, how do I change it so that the notification alert just goes off once.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] lexknight:
Nob question, Just got the Mi Mix, have never had a phone without a sim card.... exactly where do I put all the files that I need to flash, when I get into TWRP I don't see the same file structure as where I put them on the phone when in the normal operating mode.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] albertoduqe:
What do you mean without sim card? That's in any case nothing to do with storage...

You put all the files in your internal storage. That's the system folder you should see by default in twrp. If not, you are probably seeing all the .root folders for some reason. In that case internal storage is sdcard. If you don't see your files there then no idea :)
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] massiveoni:
i dont know if its a bug, but the multi colored status led doesnt work
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Selectaa:
I have Magisk 16 installed. No problems :good:
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] tonybam:
same problem too hot, otherwise rom is Excellent
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] lexknight:
Sorry SD card.... was 1 am when I was writting, and half asleep... LOL....

Ok, will try when I get home. Thanks.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] charlie_kilo:
Battery drain

Everything seems to be working very fine and smooth :) However the battery drain seem to be very high compared to original global nougat ROM and Resurrection Remix (Oreo). When I check the battey setting. The Google Pixel use by far the most battery. Even more than Facebook :)

Have anybody else had the same experience? Will the need ROM "settle" after after a day or two? BTW I flashed 30 HR ago.

CK
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] vazquez1:
vazquez1

yes i
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] obtuce:
Well, after a week with this ROM, i am still amazed at how stable this is. The battery drain has gotten alot better. The first 2 days were pretty bad but now its much netter than my previous 7.x.x rom was. I dont mind the sensor bug as it actually is less annoying than it was on previous rom.

No random reboots, no heat issues. Still overall WOW experience. Thanks again!
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] melanor9:
Awesome ROM, except touchscreen acting up on me sometimes.

Does NFC work ?
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] cms062407:
Does this ROM ever plan to be updated?? I am seeing other Oreo ROMS pop up and they are being updated, it seems.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] richardyc:
Yes NFC does work, use it daily no problem.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Kristian91:
What differs from nougat?
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] albertoduqe:
What are you missing? :)

Dev will probably update at his own pace. He's working on Psychedelic kernel and (hopefully still) at a proper updated twrp ;)
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] ChodTheWacko:
No incoming calls on t-mobile USA unless you turn off LTE and stay on Edge.

Basically a total deal breaker, I loved the ROM outside of that.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] albertoduqe:
Glups :(

Hope I could help you there. If that happened with Catdinal I wouldn't know how to fix it. Not before hours of searching :) But I am sure Psy_Man can address the issue (at his own time and pace :))
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] melanor9:
actually i had the very same **** on other (7.1 based) roms.

its not this rom specific issue.

---------- Post added at 10:45 PM ---------- Previous post was at 10:36 PM ----------

hmm.... what firmware version ?

and all of sudden my touchscreen stopped to function completely.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] mburrieza:
Great ROM!!! best so far. Almost 7hs SOT!!! with GCamMod5 camera from Arnova the Pixel portrait mode works great!!!
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] melanor9:
Does anyone managed to get googlepay working ?
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] gavin19:
More info needed. Rooting/not passing SafetyNet/xposed are known to interfere with many payment/banking apps. Did you flash Magisk/SuperSU/xposed? When you say it doesn't work, what happens exactly?

If you flashed Magisk

- have you updated it to the latest (16.0)?

- have you checked that Google Pay is being hidden in Magisk?

- does it show as passing SafetyNet?
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] jeffersonsaiint:
My mix is ​​having charging problems, sometimes it stops charging even with the plugged in cable, and the USB cable needs to be pulled out and reinserted.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Selectaa:
Anyone else seeing this problem when launching the phone app? The app works, just get this annoying error message
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Psy_Man:
Do you know what's the problem here? YOU.

https://xdaforums.com/showpost.php?p=75483402&postcount=121
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] lieying:
could you tell me when will the offical going
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] Psy_Man:
Never.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] lieying:
thanks

。。。

---------- Post added at 12:50 PM ---------- Previous post was at 12:47 PM ----------

Can you update the security patch when you have time

---------- Post added at 12:51 PM ---------- Previous post was at 12:50 PM ----------

Can you update the security patch when you have time
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] lieying:
this is not work good。my engilsh is bad. i lashed googledialer-fix.zip
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] ChodTheWacko:
I was running the Resurrection Remix 7.1.2 (and previous versions) quite happily on t-mobile.

I just discovered something quite interesting - I wiped the phone and rebooted.

When I'm sitting at the very first "Hi there", it connects to LTE, and accepts incoming calls.

So it's something after that that breaks it. I'll try to narrow it down.

When I was googling for possible issues, there were threads implying that the updates to 'phone' can break t-mobile.

I'll try to narrow it down.

Edit:

Once the phone finishes setup, it doesn't work anymore on 4g.

I entered my wifi. There's no way to turn off automatic updates.

I turned off backup and recovery.

LTE either isn't shown, just '4g'. Phone app isn't updated according to google play.
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] drotaru:
So it shows 4g and not LTE , is t it the same thing ?
[Xiaomi Mi MIX  ROMs, Kernels, Recoveries, & Other ] mburrieza:
It shows LTE and HSDPA as 4G (technically it is correct). LTE works ok, at least in my case. You can try an app called "LTE discovery" for more information about the band of operation, reception, etc.

Regarding the voice call issue, did you try to disable "Enhanced 4g LTE Mode" in Settings->Network->Mobile network->Advanced