T-Mobile's support page shows that the phone is still in " manufacturer development" so I would guess it's going to be awhile before it hits ota. https://support.t-mobile.com/community/phones-tablets-devices/software-updates#tmoSUPDocTitle

 

Isn't it set to "T-Mobile testing" already?

 

http://www.lawyerherald.com/article...-lg-g4-g3-g-stylo-under-us-major-carriers.htm

No date yet.

 

http://androidforums.com/threads/marshmallow.1001142/page-2#post-7241528

T-Mobile version is rolling out starting today. Don't expect it right away. They roll it out gradually.

 

Force update metroPCS/T-Mobile LG Stylo to Marshmallow.
Tutorial thanks to Paco_1 on XDA Forums.

 

Just flash tmobile version. Works fine. Did it with past phones. Where on same network as them. Everything working for me on metropc phone with T-Mobile flashed MM.

 

That's basically what the tutorial does, it flashes the T-Mobile ROM into a metropcs device.

 

I am on mpcs 10j stock no root. I downgraded from Katana. Every time i try to flash the H63120b kdz file i get a "cannot connect to server" error. I am using Lg Flash tool , ran as administrator. My phone is in download mode. I am on Windows 10. I have also installed the lg drivers and H63120 kdz is in the folder with i made on my desktop with all the files from the lg flash tool zip. Does anyone know if I am in error? If so how do I fix it. My phone still works, and didnt go passed 0% in download mode. I pulled the usb cable and battery, and started it right back up.

 

As shown in the video, this is normal. It'll work just follow the steps

 

Heres what i did @RonnieMatson. I extracted LG Flash tool to my desktop. I put the 20b kdz from tmo in the folder with the LG Flash Tool. Powered off my phone waited 10 seconds. I put my phone in DL mode, ran LG Flash tool as admin, loaded the kdz, hit CSE flash, hit start, cleared registry, selected different country, and english. The flash started as shown and i got the normal error. But my phone does nothing. It just stays at 0% in DL mode until i do a battery pull and restart my phone. I am on stock 10j, have oem unlock checked, as well as usb debugging. I no longer have root, as i downgraded to stock from katana. I am also a metro user, and have the stylo with the new cheaper screen.

 

There's a cheaper screen now?
Also, are you attempting to install the update (to marshmallow) manually instead of doing it OTA?

 

Yes they put out a cheaper screen when they did the price drop. And yes i am trying to force my phone to update to MM using the kdz and lg flash tool.

 

Phew, thank god i got mine for $100 on swappa.
That said, at the moment you currently cannot upgrade to MM using the kdz files.
You need to follow the steps on the video (which requires you to upgrade to 110I) and manually reset the device, change the time to 11:30pm and check for updates which in turn will activate the need to upgrade to MM.

 

Ok so i do have to downgrade from ms63110j to the tmo 10i? So ill flash the 10i kdz reset my time and wait? Btw @RonnieMatson , i highly appreciate you taking the time to help!

 

Ill get back in a few with my results.

 

Ok so i downgraded to 10i, and took a 60.7 mb update, restarted now im on tmo 10j. Now im taking a 147 mb system update which took me to 10l. My guess is next update.. Marshmallow! And... It worked. I am now on stock MM. Next step, Root!

 

Glad to hear it man, welcome to the MM family.

 

so your next step is ROOT? let me tell you that root is possible but looking for a good recovery will put your phone into a bootloop! now, if u get this problem and cant return back to a rooted Rom.......I know how, but it will revert back to h63110j. at least your can still have root with a recovery. so let me know if you have problems and cannot get back to an OS. i will write down the process.