Huawei Mate 20 Pro on T-Mobile?

  • 24 October 2018
  • 71 replies

Of all the phones to come out this year, the Huawei Mate 20 Pro has me the most intrigued.  While not available here in the USA, I was wondering if an international variant would work on T-Mobile, particularly for wi-fi calling.  Here are the bands the Mate 20 Pro works on...

  • GSM:
    • 850, 900, 1800, 1900 MHz
  • UMTS:
    • 800, 850, 900, 1700/2100, 1900, 2100 MHz
  • LTE (FDD):
    • Bands 1, 2, 3, 4, 5, 7, 8, 9, 12, 17, 18, 19, 20, 26, 28, 32
  • LTE (TDD):
    • Bands 34, 38, 39, 40
  • Data:
    • LTE-A Pro Cat 21 (1400/200 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA

From what I'm seeing, it looks like it will work for calls and data, but I have no idea about the Wi-Fi calling aspect.  Thoughts?


Best answer by tmo_chris 26 October 2018, 17:05

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71 replies

Thank you for posting this question loucap! I came here and signed up to do the same thing. I'm currently with Sprint but I'm willing to change a T-Mobile if this phone is supported.

The particular version that looks to be available to me immediately is from Singapore, not the UK.

It looks to be model code LYA-L29, which is Huawei Mate 20 Pro 6.39 Inches Dual SIM 40MP 6GB RAM Factory Unlocked Phone.

The band specifications for the phone from Singapore look to be the same as loucap showed above in the original post.

As someone who has never tried to use an international unlocked phone with a US carrier would anyone be able to help and let me know if we expect that the country source of the phone will impact its usability on T-Mobile?  Or is it just the listed bands that really matters on whether it's usable with T-Mobile?

Thank you in advance for any information.

Welp. I took the plunge. Mate 20 Pro should be here in a couple weeks at latest and just signed up for TMobile service. Fingers, toes and eyes crossed for luck. Will certainly update once the rubber hits the road.

Thanks for your original informative post loucap!

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Yes I have access to ebay for how much you will be selling it

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Nice having it unlocked is good since if you want to change carriers you can just switch with no penalty

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Hey folks!

That phone has most of the band support needed to work with T-Mobile network bands & technologies but the Wi-Fi calling is not guaranteed as we do not sell it and have not configured it to work properly with all of our services.

Hmmm...hopefully someone will buy one and test this out. Otherwise, I might have to be the guinea pig.

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why would you shut off the sim? its kind of telling the phone whos network its supposed to be using including carrier specific wifi calling.

While that's disappointing, at least we can get theOnePlus 6T now!

I am getting one soon will let you know..

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One Plus 6T is exciting but the killing of the headphone jack was a real bummer ended up ordering an S9+ through Samsung since they are also running a deal till tomorrow where they give double the trade in value on devices. Still, the One Plus 6T looks amazing.

Looking to get the Mate 20 Pro or the Mate 20 X here in the next month or so. Just wanted to see if you had any tips on purchasing? Where you got yours and what to look for as far as returns or certain bands? Thanks.

Hmmm, I don't think that voLTE is enabled on the Huawei mate 20 Pro on T-Mobile. You may need to give me some follow-up guidance though and how to double check or confirm this.

I don't see anything in the settings that you mentioned (settings in the stock dialer, or in the general phone settings under 'Wireless and networks'). Also, to your second point, when I make calls there is no HD or HD+ icon; this includes both outbound and inbound calls, neither has that icon. When I look online the phone appears to support the Bands which would be used for voLTE, but I don't see that it's actually implemented or available.

Okay here's where it gets dicey though... we also have the t mobile locked OnePlus 6T, and I can't find any mention of voLTE in the 6T stock dialer settings, or in the General phone settings under 'Wi-Fi & internet'). Having said that when I make outbound calls to the mate 20 Pro the HD+ icon appears in the stock dialer of the 6T. But when I receive an inbound call on the OnePlus 6T from the mate 20 Pro, the only phone I've checked and inbound call on, there is no HD+ icon. That's why I hesitate to give you a solid answer, my positive control so to speak of the OnePlus 6T is only showing it for outbound calls, and so I might not be interpreting that correctly.

As to why vo LTE does not show up in the OnePlus settings, perhaps this link indicates something? Since T-Mobile says that it can't be turned on or off perhaps they have hidden it in the settings, and it's just always on. Link below.

Hope this helps.

tldr; Best phone I've ever had and everything I hoped for, but you better do your research on the green tint screen bleed and recognize that you're gambling.

Well, I got mine on eBay as well it was pretty fast shipping and paid 1199.99 from a USA based seller who was very responsive and who I would recommend. The purchasing experience was great, this is the one I got (price has since dropped by $50, link below).

First thing I would say is absolutely do some research about a green tint screen bleed. this is a problem that is apparently quite pervasive and popping up on quite a few mate 20 devices with different degrees of severity. since the phone would likely be bought from an international source and Huawei would provide no u.s. warranty, it could be quite the Gamble.

I can actually see the screen bleed on the phone that I got, but it's quite infinitesimal. I have to go into a pitch-black closet, bring up a dark gray but not black background, and play with the brightness slider. But the green tint bleed is there... unambiguously there.

Also, something I haven't seen other people mention, is it in the stock camera app as you cycle between portrait, Pro, Photo, video, there is bleed from the top of the screen near the notch. This bleed only dimly flashes downward from the icons that switch in and out as I cycle between the settings, and again is noticeable in a dark  (but not Pitch Black) room.

Finally in terms of the display, if I go to YouTube and just play gray background screens, I get an intermittent and irreproducible dark slight blotching affect creeping from the edges of the screen toward the middle.

From what I understand Huawei is trying to say that at least the first and third display issues I described above are features of the curved screen. I can attest this is absolutely not the case, because the green bleed and dark blotchiness are not regular along the curved Edge and also can occur near the top and the bottom of the display.

I wanted to be really transparent, and set expectations for the worst. Having said that it's really quite unnoticeable to me, I have to work at making these display issues noticeable. I might not have even noticed them if I hadn't read about the pervasive problem and set myself up in a pitch-black room to probe the problem. I may post some of this on XDA Dev forum to compare notes with others, but haven't done that yet.

My concern is whether these will grow in magnitude and severity. if I was assured that my phone would stay in the condition it's at, and never get worse I wouldn't even consider returning it. Unfortunately it's too early to tell whether the problem will get more severe we just don't have enough data, or time in flight yet.

I still have a short period of time before my return window closes through the seller and I would be stuck trying to do a send in to an international warranty in Asia. That's not a fun thought. I'm hoping that over this next little bit of time I can ascertain whether there's even a minimal increase in severity, in which case I will return the phone. But if it stays at the state that it's in, quite frankly it's such an awesome phone that I'll probably just keep it and Gamble.

Okay so what makes it awesome? As to what I would be comparing it against I also got a OnePlus 6T (locked, from T-Mobile), and have been switching back and forth between the mate 20 Pro and the OnePlus 6T for a few days.

I know the OnePlus gets rave reviews, and my SO (who has a OnePlus 6Tas well) loves it, but to me it pales in comparison to the mate 20 Pro. Frankly I only got the OnePlus 6T phone for myself because it was priced at half off through T-Mobile and just in case I have to bail on the mate 20 Pro. Because of its Wi-Fi calling and volte, I'll probably use the OnePlus when traveling to some areas.

But, so far each time I switch over to the OnePlus, and shelve the mate 20 Pro for a day, I do it with a Grimace and a sigh of despair.

Don't get me wrong, I'm sure I would have loved the OnePlus, if I had never held the mate Pro. For the half-off price it's a no-brainer. At the T-Mobile half off price for the OnePlus, it's only 1/4 as expensive as the mate 20 Pro! That's an insane cost differential. It's just hard to climb down off of the top, even though the OnePlus is objectively a great phone (except the one plus in screen fingerprint sensor is blindingly bright in a dark or dim room, annoyingly bright).

Ok, so... mate 20 Pro: I really love the form and the features. It's simply the best phone I've ever had. Better than the note 7 that I had briefly until the Samsung battery police came and grabbed it from me before it might have blown up

The emui 9.0 UI is really nice (coming from falling and LG) I'm not sure why people don't like emui. I'm digging the gestures. The face unlock is wicked fast even in the dark. I can uninstall or basically block the few bloatware apps that came preinstalled. The screen recorder is just awesome (although Huawei might regret putting that on there since I'm using it to capture some of the screen issues).The knock split screen and other knock features are intuitive and I'm already addicted to them.

It is true that with gestures fully enabled things like picture and picture are difficult, and sometimes unworkable. this doesn't bother me too much and I can usually gesture a couple of times to get around it, but I can imagine it would bug the heck out of some people. If you don't use gestures and instead use the nav buttons, this is not an issue at all.

The one thing that I can't figure out if it's my user ignorance or a phenomenally stupid oversight by Huawei is that there is no apparent way to toggle auto brightness on and off in the notification tray. You have to dig down deep into the full settings to toggle auto brightness on and off. This is enormously frustrating, I don't know if it's a bug, or a feature of emui 9.0. It might not bother others but for me it detracts from the user experience to a surprisingly large degree.

Overall again it's a fantastic phone it's everything I was hoping for. Not having Wi-Fi calling is not a big deal for me, not having (apparently) voLTE doesn't seem to be a big deal as I get fast calls with great reception. even with Wi-Fi turned off so that I'm exclusively using the cellular network, I am able to send and receive texts and gmail and cruise around online websites while on a phone call... which is absolutely essential to me. Interestingly the only thing that I expected to work when I'm on the phone but which doesn't seem to, is sending and receiving messages through the Viber app. When I send messages or am sent messages through Viber, they're held up until I end the call. I'm not sure why I would be able to access the internet when on a call, but not use Viber.

I'm just desperately hoping that the screen issues stay as infinitesimally minimal as they currently are, cuz I really really really really want to keep this phone. But, caveat emptor.

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IIf I can find one in a store, I will try to grab a picture of the box or the About Phone screen.

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get the one plus 6t I think you will be very pleased with the phone. You get all the flagship specs and important features needed to have a good experience on T-mobile for a reasonable cost.

I got the Mate 20 Pro Dual SIM version today.  Amazing phone but as stated in previous posts there is no VoLTE and no VoWiFi support .  Please see the screenshot below .

Would be nice if Huawei had a firmware update that allowed for these bands (66+71) to be used. VOLTE works in Hong Kong and other parts of the world. Reception around Irvine is bad as is as Irvine does not really allow any cell towers to be put up so they can make people use Cox Cable which they have a monopoly over on and over charge customers with. This then forces people to pay extra money to COX Cable every month to have internet usage at home as cell data reception is poor for some odd reason 😏

Sony Xperia XZ4 will most likely come with Facebook preinstalled into the OS with no uninstall option which will be the ultimate built in SPY tool but you could supposedly disable that built in SPY tool which has been know to SPY on users and track all their movements. No wonder China did not allow them into China lol..

Many accusations against Huawei but none of the latest smartphones have concrete evidence in the system that it is spying on users. It is possible but so far none have been found on new recently released smartphones unlike Facebook.

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I think Sony phones are cool the most coolest feature they have is their 4k screen altrough I say 4k on a phone is overkill but it's still would be nice to have it problem is if you use it it could drain your battery fast so I say I could live with a 2k or a 1080p screen if at least the panel was Oled altrough I heard that Sony has good management of that so that's a plus

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I get excited for new phones even trough I can't afford one I hoping that in the next couple months to see if the one plus 6t goes down in price

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I live in the US territory of Puerto Rico or legally called Commonwealth of Puerto Rico

Oh ok. Cool. Well if I do sell it as long as you have access to eBay (which is where I'll be selling it on) then it's all good!

Well I bought it in October and so by say March/April it will be about 6 mos old, but is still in excellent condition. I will also be unlocking it as well, which will raise its value. So I'm thinking $450. I had paid about $600 for it. I will also be including a nice clear case with it as well.

So we'll see. It all depends on if I buy another phone or not, and I won't know that until March/April. But I'll definitely keep you posted!

Yeah exactly! I've never unlocked a phone before, but T-Mobile makes it pretty easy to do these days.

Hey landonloco.......................................the Sony Xperia 1 that I wanna buy isn't being released until May (ughh........SO annoying! lol), so I'm gonna hold onto my T-Mobile-locked OnePlus 6T a little longer before selling it. But I will keep you posted as things progress. Again, I plan to pay it off in advance so that I can unlock it, which will increase the value of course.

In other news...............wonder if the P30 Pro will have T-Mobile VoLTE? Probably not, but we'll see. It has MOST of the T-Mobile bands (2, 4 & 12), but not 66 or 71, so def won't have the best reception vs. other phones that have them all. I think I'm gonna pass on this one too. On top of that, it still has the Kirin 980 sensor which the Mate 20 Pro had as well. Hopefully they aren't stupid and put the 990 in the Mate 30 Pro this fall. We'll see. Though I may have the Sony phone by then and it won't matter. Another one I'm keeping my eye on is the Nokia 10. The new Nokia 9 Pureview is great except the camera is not great in low-light and it only has the 845 not 855. If they fix those issues it would be a great phone I think as the camera is great though not perfect.