The T-Mobile OnePlus 6T is carrier-locked and doesn't support dual-SIM

The T-Mobile OnePlus 6T is carrier-locked and doesn't support dual-SIM

For the first time in the history of OnePlus, its newest high-end device will be made available to US consumers through T-Mobile as part of an exclusive agreement between the two companies.

Just as expected, the OnePlus 6T is offered in three storage configurations and two colors. However, T-Mobile has confirmed that it will only be offering the 8/128GB model in Midnight Black for $579 – customers can acquire it for just $279 by trading in their old phones. This particular device is identical to the unlocked variant in every way except one.

OnePlus fans who choose to purchase the unlocked OnePlus 6T will gain access to a dual-SIM card slot that now also supports Verizon SIMs, meaning owners can connect to Big Red’s LTE network. However, customers who choose to acquire the OnePlus 6T through T-Mobile will not have this advantage. This is because the device will support just one nano-SIM card and will also arrive carrier-locked, which means it won’t be compatible with other networks. 
There’s no doubt some OnePlus fans may see this as a significant drawback that could push them towards the unlocked model. But the company itself doesn’t appear to be too worried. After all, in a post-event interview, it stated that it’s still “very rare for US users to utilize dual-SIM.” Therefore, the OnePlus 6T should “satisfy” the needs of most T-Mobile customers.

Related phones

  • Display 6.4" 1080 x 2340 pixels
  • Camera 16 MP / 16 MP front
  • Processor Qualcomm Snapdragon 845, Octa-core, 2800 MHz
  • Storage 256 GB
  • Battery 3700 mAh



1. D34ever

Posts: 236; Member since: Jul 14, 2018

I'd buy it directly from OP then.

2. Jmar82594

Posts: 2; Member since: Oct 29, 2018

So can the TMobile version be unlocked at all? After paying it off or if you purchase it full price or even after that it can only be used with tmobile? If someone could please comment that be great

7. bovcrx

Posts: 109; Member since: Mar 06, 2012

From my understanding that's a law in the US. Correct me if I'm wrong.

11. jerrymilton

Posts: 11; Member since: Oct 05, 2015

OP already has the unlocked form on their site. (XDA has all the info). You can trade in ANY OnePlus phone for $300 credit. I am trading in my old OPO, then pay the additional $280 to pay it off...and fill out the form. Unlocked OP6T for $280.

17. ThirdEye

Posts: 33; Member since: Oct 31, 2012

T-Mobile normally automatically unlocks the phone as soon as you pay off the EIP plan. I had my LG G3 and G2 that were unlocked within a day of paying off my EIP. But they do state that even if you pay the full amount upfront, they will only unlock the phone after using it in their network for 40 days. One thing is certain, the TMO model is not DUAL SIM. What we need to find out is whether it will also have support Verizon bands. The software updates also would need to come from TMo after it passes additional certification. But since TMO is openly touting partnership, I would reckon that there will be sufficient updates maybe not at the frequent intervals say like the OP6T Unlocked.

3. libra89

Posts: 2313; Member since: Apr 15, 2016

This makes sense though, why should it be dual sim?

5. antmiu2

Posts: 551; Member since: Jun 19, 2011

why should it have 128gb of storage?

6. Crispin_Gatieza

Posts: 3166; Member since: Jan 23, 2014

Don't see what the big deal is either, I don't know of ANY phone that T-Mobile sells that are dual SIM.

18. skwy1963

Posts: 50; Member since: Aug 10, 2013

they are looking for something to attack . this phone is very promising

4. trollz

Posts: 63; Member since: Oct 11, 2013

Will the T-Mobile version will get software updates directly from OnePlus?

8. ikenvape

Posts: 309; Member since: May 28, 2014

That is the #1 question. Probably not, I wonder if they'll lock the bootloader too

9. gjkiii

Posts: 41; Member since: Oct 25, 2013

So whats the advantage of buying it from T-mobile then?

13. ikenvape

Posts: 309; Member since: May 28, 2014

Suppose that would be the trade in offer and financing

10. jerrymilton

Posts: 11; Member since: Oct 05, 2015

Trade in my old OPO gathering dust in the drawer ($300 credit), pay the additional $280 to pay it off...fill out the form to get unlock code. BOOM. done. It ain't rocket science. OP already has the unlock form on their site (XDA has all the info)

12. jjface

Posts: 257; Member since: Jun 07, 2017

Thanks for this article - no way I am buying from tmobile now.

14. skymitch89

Posts: 1453; Member since: Nov 05, 2010

My biggest question about the T-Mobile "variant" is if it'll be carried in stores and if there'll be any demo units.

15. Boast_Rider

Posts: 536; Member since: Sep 14, 2017

Yes, and yes.

16. clittle615

Posts: 1; Member since: Oct 30, 2018

So to confirm...I can use 2 separate Verizon numbers in a dual sim capacity?

Latest Stories

This copy is for your personal, non-commercial use only. You can order presentation-ready copies for distribution to your colleagues, clients or customers at or use the Reprints & Permissions tool that appears at the bottom of each web page. Visit for samples and additional information.