Develop Bugs

[Q] Has there been a solution for the MMS issues? AT&T Unlocked on T-Mobile

I have spent hours searching online and XDA reading posts with no luck. I wanted to see if there has been a solution to this ongoing issue that I overlooked. Not having MMS is a huge deal breaker for me, unfortunately if I can't get it to work I'll be going back to my Nexus 5. I was wondering if anyone has MMS working for T-Mobile? If there was a solution? It has not worked for me in any of the listed messaging apps...
Some things I've tried:
Played around with T-Mobile APN settings (from T-Mobile site and user recommended here at XDA)
Tried Textra app, HTC messaging app, Hangouts
Turned off WiFi
Things I have not tried:
Turning off WiFi calling (AT&T unlocked version doesn't have it)
Flashed any ROMs
Any help would be appreciated, thanks!

S-off and switch to a T-mobile branded version of the operating system?
Still might not work flawlessly, as T-mobile and AT&T use different bands for some things, but it might be worth a shot.

Same problem here. Can receive texts...not send them....

Search how to Flash t-mobile RUU and you will have wi-fi calling plus working mms and all radios.

[Q] using tmobile on Sprint LG G2 issue

My T-mobile Galaxy Note 3 was sent for repair, so I acquire myself a Sprint LG G2 from a friend. The Sprint LG G2 had a clean IMEI and was not rooted when my friend gave it to me. After he gave it to me, I successfully had it rooted and installed TWRP recovery on it, and install the CLoudy G3 rom that was recommended inorder for it to be able to use it on T-MOBILE. At first it didn't work. I kept getting the "no sim card" error and " sim card not compatible" issues. So I tried resetting the phone, and after resetting the Sprint LG G2 I can see it's trying really hard to pick up the T-MOBILE signal, but unfortunately it wouldn't pick up. So in the phone on the dialer I input *#*#4636#*#* then I went to PHONE INFO then I scroll down and selected WCDMA PREFERED. Right after I do that I notice the Sprint LG G2 no longer shows the "no sim card" error or the "sim card not compatible" issue. And I can make/receive calls and text messages. However every 2 hours or so the Sprint LG G2 with the Cloudy G3 rom would kill off the T-Mobile signal and I would have to reset the Sprint LG G2 phone, and have to redo putting in the weird *#*#4636#*#* steps all over again just to make the Sprint LG G2 work for Tmobile. So my question is is there a way to over come this issue of having to restart the phone, then putting this *#*#4636#*#* in the phone dialer, then scrolling down and selecting WCDMA preferred? It's becoming a real annoyance having to redo those steps over and over again every 2-3 hours or so. Be awesome if anyone in here would point me to the right direction on how to overcome this problem. Am I not flashing the correct Cloudy G3 rom for the Sprint LG G2? Am I not flashing the correct radio or Kernel for the Cloudy G3 rom?

Verizon branded M8 on T-Mobile

Hello and thanks for reading,
I'm currently a T-Mobile subscriber, but I'm using an unlocked Verizon HTC One M8.
The phone is currently rooted has S-Off and Super CID.
The problem I have is that my data connection seems to constantly drop randomly.
Whether I'm on a call, sending or receiving group messages / MMS, or simply browsing the web.
I have to switch on airplane mode at least 20+ times a day to obtain a data signal.
My cellular network type is consistently on EDGE.
I CANT SEEM TO GET ANY 4G OR LTE.
Can someone point me in the correct path to fix the issue.

I used to have this issue, until I activated T-Mobile bands that are originally deactivated by Verizon from the factory. Maybe this was a huge coincidence, but I had the exact same problems until I did this. Also flashed LolliGPE at this time.
You can use CDMA tool to achieve this. There are numerous guides on how to do this on XDA, feel free to send a PM if you need more explanation or w/e.
Also, it wouldn't hurt to factory reset from stock recovery to correct any potentially corrupted NV items.

What I've found work good is install custom rom like viper one then enter your T-Mobile mms settings then use the app called 4g switch n click the drop down n select WCDMA n should be getting a constant four bar

Sorry for such a late reply, I am currently using ViperROM and still have troubles.
I've flashed several different roms all were affected, I've tried numerous firmware and radio's none have worked.
I'm not sure how to block CDMA network keys from functioning, care to elaborate a bit?

Flashed G710PM to G710VM, Having Issues

Hello All,
Tried looking for a similar situation as mine on here.. but couldn't find it.
I flashed my G710PM to G710VM to use on Reach Mobile (a Verizon MVMO).
Their website said that phone was incompatible with their service, when I put the simcard in there, the phone received a signal and data worked. 1 hour later it stopped working.
Anyone know why this happened? And is it possible to get it to work on Verizon MVMO?

Can you still make phone calls/do you still have signal? If so try messing around with the apn settings if you haven't' already

My LG G8 has lost signal but still recognize SIM card.

Hello everyone, my phone is LG G8 Korean SK telecom, i have been using my phone for over one and half years without mobile network problem, except its signal quite weak and the phone restarted frequently. Last week it suddenly lost signal (no signal at all, not rotating icon) though it still prompt me to enter SIM lock password. I had tried different ways like factory reset and even flash kdz to older and current Android version but nothing happened. Can anyone encountered this case help me ?

Hello,
No fix for you but I also have a lot of calling issues with my Korean G820N (LGU+). Most people calling me get the ringtone and my voicemail but I have NOTHING on the phone..... So, I miss calls and was forced to install a voicemail app to know if people called me or not....
I'm thinkign to flash a US KDZ but if you could give a quick feedback of your problem it could help me.