How to get T-Mobile LTE working (And Stable) On Sense 6 Roms with a Verizon One Max

Hey guys, I have a few questions that I need to get resolved which MAY help in getting LTE Working solid on Verizon One maxes for those who Have T-Mobile, but I would like to confirm that T-Mobile LTE does work on the Verizon one Max. You don't need to flash ANY special Radios. You can even use Verizon's Latest Radios and it works. All that needs to be done is use *#*#4636*#*# to change the preferred network type to GSM/WCMDA/LTE and boom, it works. The Problem I am having is that you have to switch to GSM Only first, just to get it to Work on T-Mobile before you switch to GSM/WCDMA/LTE. Another problem is that when you reboot once or Twice, my radio keeps on going crazy Rapidly switching from No Service to T-Mobile and Back. I go back into *#*#4636*#*# and I see that it changed to EvDO+CMDA/LTE Mode. I would have to go back and switch to GSM only to fix the problem then back to GSM/WCDMA/LTE Mode to connect to the network again. And yes I have the fast.T-Mobile.com APN Already inputted. This is with both Verizon and Sprint Sense 5 or 6 Roms. So we know LTE works on T-Mobile with the Verizon HTC One Max, But it won't stick. However, I decided to Flash a Cyanongen 11 Rom to the One Max, I am able to go System > Mobile Networks > Preferred Network Type and switch it to GSM/WCDMA/LTE, Reboot, then go into dialer and enter *#*#4636#*#* and Switch to LTE/GSM auto (PRL) and it works flawlessly. No matter how many times I restart, I still instantly connect to T-Mobile's LTE Network. Texting and MMS works with no issue. So what I think the issue is that On Sense roms there is only 6 Different Preffered Network types to choose from but on the Cyanongen 11 Rom, there are over 15. Also, On Sense ROMS there is only a GSM/WCDMA/LTE type with no Auto and I think that's the issue. There is no LTE/GSM auto (PRL) Selection in Sense roms. Because when I choose GSM (auto) on Sense, I can connect to HSPA, 3G, and EDGE with no issues. So I am asking for some help in How can we get more Preferred network type selections under *#*#4636*#*#. Or is there some scripts we can change with the current ones that resemble a LTE/GSM auto (PRL) Selection. But I think that is the culprit in Getting LTE fully working.

And just to Confirm that LTE is working on HTC One Max Verizon Version.

snyper2k2 said:

I'm trying to do this too. But the roms I have tried so far won't let me get into *#*#4636#*#*. What Rom did you use to get into it?

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I am using NuSenseSIX-KitKat Rom. If you cant get into the Settings, Download Network App from the app Store.

jerrycycle said:

I have come to use xposed module Intelli3G to auto select the network. It has to be set to you liking of network chose.

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This does seem to fix one of the Issues, but I am getting Signal Dropouts on LTE when going from Tower to Tower and have to turn on and off Airplane Mode to get it working agian. Do you ever experience this issue?

jraz305 said:

Any way to get this to work on a spint variant . I really don't think it's hard ware.. and more of soft ware.. please chime in if you Have any suggestions thanks in advance

Sent from my HTC0P3P7 using XDA Free mobile app

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I use to Have a Sprint One Max with it Unlocked as well and I only got HSPA+ Speeds with it. I never Went about getting LTE to work because I though it didn't have the Compatible Radio inside of it. I am hearing that the Sprint Version has the Same LTE bands as the Verizon Network Uses. But I would try to go into you *#*#4636#*#* (or Download Network from the Play Store) And try switching your preferred network to GSM/WCDMA/LTE and see if it works. Make sure, that your APN Is set to the Fast.t-mobile.com One also. That is all I did to get it to work on the Verizon Version.

snyper2k2 said:

I get these drops too.Mainly when I switch wifi off or on.

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Same here. Also, I tried switching bands and it did seem to fix the Problem, However it prevents me to Call out or Receive Calls because usually when making or Receiving a Call, the LTE Band goes back to 3G/H/H+ because T-Mobile hasn't Activated VoLTE yet. But it is good to know that LTE does work but it's not really Stable and Global Phone Friendly. The Problems really happen when Driving around or Going from Tower to Tower. Signal goes from perfect to NULL and just stays at 1 or 0 Bars no matter where you go. And you either have to Restart the Phone, Turn the Radio off then on, or Just simply Turn on and Off Airplane Mode to fix it. So I am just using WCMDA or GSM Only for the time being and I don't really want to go to a AOKP CM11 Rom because most of the Features I use aren't there. And just to Clarify, Switching/Flashing Radios and basebands does NOT Fix the problem. I have tried All sorts of Radios, even from T-Mobile HTC One Phones and just doesn't work.