Can't send/receive MMS on Wi-Fi

diiiiima wrote:

I'm having the same problem on a OnePlus 8 phone.

 

I've switched the APN protocol to IPv4, and added “internet+MMS" to APN type - but still cannot send or receive MMS without a cellular network.

I'm having the same problem on a OnePlus 8 phone.

I've switched the APN protocol to IPv4, and added “internet+MMS" to APN type - but still cannot send or receive MMS without a cellular network.

Go to your apn settings.

If you cannot edit your current apn, add a new one and make it identical.

In the APN type field, copy your original settings except: if it says internet, change to internet+MMS. if it does not have internet, add internet+MMS. should look like this:

default,supl,internet+MMS,hipri,fota

or similar

So this has been an ongoing issue for me for 2 years on a Pixel 2XL and a Pixel before that.

I think I have finally figured it out. I noticed mine would work sometimes and not others.  Started looking at making profile changes, etc, and noticed that the default T-Mobile profile prefers IPv6 over IPv4.  I live in an area where we have Time Warner Cable/Spectrum and their IPv6 is pretty shady at times.

Went into my WiFi router and disabled IPv6, my MMS has worked flawlessly ever since!  My roommate who has a Pixel 3XL, solved her problem too!  I believe it actually has nothing to do with the phone or the service, but actually with IPv6 and your internet carrier.  Try disabling IPv6 on your internet router and I bet it will fix it for you too!

Now, I have to figure out how I can disable IPv6 just for my device so other devices in the house can use it.

I have had the same issue on my LG V20 for a year or so now. I finally found a solution that worked for me by accident. If I use T-Mobile Digits and the native SMS app on my LG (only the native one will work) everything seems to working as it was meant to. I only found out about digits a few days ago (not sure why T-Mobile is not advertising it). Digits allows you to use multiple phone numbers on one phone (through cellular data connection or WIFI) and also allows you to use your phone number on other devices as long as it has an internet connection. Some phones have the Digit app as a native app (the V20 does) but you can also download the app. The native version is not activated by default, you have to go to the Digits web app to activate it. It was a bit of a convoluted process and I'm not 100% how I managed it but when I log into my T-Mobile account and click on "phone" it showed me a Digit link below the image of my phone. After clicking that it asked me if I wanted to activate this on my phone. Once activated you have to go to your phones settings, accounts and add the digits account (not sure if this is fully necessary but this will allow you to use multiple phone numbers). Once activated when I opened the LG messenger app on my phone it showed me a magenta sim card symbol next to all my conversations. This now means all the conversation (or at least the new ones) will also show up on which ever other device you register to it. You can even log into it on a web browser at DIGITS de T-Mobile . I'm not 100% sure how this makes it work but I think its because Digits is fully web based it sends all the info as pure data not some hybrid MMS/SMS thing. Hope this works for other people too.

I had the same issue with my Sprint phone that I brought to T-Mobile.  When connected to WiFi, I couldn't send or receive MMS messages or participate in Group Chats.

In the Messages app, under settings, there was a Chat Settings menu, that was supposed to have options to enable MMS and Group Chats over WiFi.  When I attempted to access the Chat Settings menu it presented a dialog box that said I must register, and they would text me a message with a verification code.  When I attempted to register, the text message never arrived.  I'm guessing it might have been attempting to register with Sprint.

I fixed the issue by installing the Messages App (Google LLC).  Now I can send and receive MMS and Group Chat messages, on and off of WiFi.  Under the Settings menu -> App option, I changed my default messaging app to the Google one.

This doesn't need Root, just a version of the Samsung tool (Odin) that is modified to ignore the model checks (flashing G935T software onto G935A phone)

Since you mentioned root - I presume you are somewhat tech-savvy yourself?

Hopefully T-mobile moderators don't mind the links to firmware (I don't have time to read all the "terms and conditions")...

Anyway, it was kinda scary for me as friends couldn't afford to buy new phones (never done before) , but someone I work with told me if it didn't work Best Buy has a samsung rep who would reload the Stock AT&T software on it so you only lose time trying it and can then restore your files/apps after...

This doesn't trip the Knox security bit, nor does it cause e-Fuse issues, you just need to hope there is Tmobile software out there at same bootloader (BL) version as you are running now -- I can't do this to my S8 Active as TMO is BL v1, and ATT is BL v2 😥 ...I have to wait until TMO updates to BL v2.

The latest firmware on TMO is G935TUVS4BRC1 so you'd need to locate that from a reputable source

(DISCLAIMER - I CANNOT GUARANTEE sources of firmware - USE AT OWN RISK)

I did a quick look and found the latest firmware on this thread:

https://forum.xda-developers.com/tmobile-s7-edge/help/galaxy-s7-edge-tmobile-stock-rom-t3729776

Patched ODIN loader is on this thread

Patched Odin 3.13.1 | Android Development and Hacking

Anyway, if you wanna try yourself there are other things to research:

Put phone in developer mode and enable USB debugging (they say it helps)

Use Smartswitch to back up data (move private files to a folder before backing up - flash will erase phone)

Put phone in recovery mode and do factory reset, then reboot, then do clear cache partition

Put phone in download mode and connect to USB Port (do NOT use USB3 ports - they can cause issues for some odd reason)

Open Modded Odin, put files in each of the 4 boxes labeled (BL, AP, CP, CSC)

Click <START> and pray LOL

Watch screen, in about 5 min or so it should finish - but be patient

AGAIN - THIS IS ALL AT YOUR OWN RISK - Tmobile won't support you if ya mess it up and I 'm not liable as I barely know how to do it myself (But it wasn't that bad - but I'm an IT guy by trade)

do lots of research if doing yourself -

GOOD LUCK

Wouldn't that require for me to root my phone anyway?

That was one of the initial steps I tried, but no, the safe mode didn't help.