Forum Discussion
Can't send/receive MMS on Wi-Fi
- Hace 7 años
¡Hola, @magenta4936749!
I did some digging and was able to find that there is a known issue with Galaxy S7 Edge models that have an issue when handing off WiFi to the data network when trying to send MMS'. My recommendation would be to talk with Tech Support via 611 or T-Force (Facebook/Twitter) to get a ticket filed with our Engineers. By chance, have you already done this? If not, give that a shot and keep us updated on the outcome of the ticket.
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
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