[Completed] Changing SMSC Setting on Samsung Galaxy S4 - Without "Secret" Menus?... Possible?... - XDA Assist

Changing SMSC Setting on Samsung Galaxy S4 - Without "Secret" Menus?... Possible?...
Phone: Samsung SCH-I545
Android Version: 5.0.1 (Still Verizon Stock)
I am at my wits end, and hopefully this forum can help. I recently ported over my Verizon Samsung Galaxy S4 over to Walmart Family Mobile (T-Mobile Network). Once it was transferred over (about 5 minutes later) I suddenly could not send texts. Internet, Phone, and apparently MMS messages seem to work, but plain SMS does not. I confirmed tonight that while I am connecting to any LTE 4G tower, SMS does not work. However, when I am on 3G or lower (Edge), I am able to send SMS.
When I read the forums (here and elsewhere) I saw that the solution might be to change the SMSC settings to the default for Walmart Family Mobile, which is supposed to be +12063130004. I try using the "secret" Samsung menu, but it seems to have been disabled by Verizon - it's just not there.
Here's what I've tried so far:
- Tried "secret" codes like *#*#4636#*#* (none work)
- Successfully rooted the phone
- Installed app "Advanced Signal Status", tried updating SMSC to +12063130004 (did not work)
Does anyone know of a means of installing the "secret" Samsung menu, or otherwise modifying the SMSC value?
Or, as a last resort, an app that would always send messages as MMS by default?
Thanks very much for any replies.

Hi,
Try posting your question here:
Verizon Samsung Galaxy S 4 Q&A, Help & Troubleshooting
The experts there may be able to help.
Good luck!

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I have bought two phones from the same person with the same story for both phones; The story goes that ATT could not provide good reception at his home with these phones and replaced them with new ones. He sold me the old ones. Neither are on the blacklist, and now both are unlocked. Neither telephone not texting work on Tmobile, However, both work on Att at Att regional fix it place. T-mobilre states that it is an issue with Att, LG states that the phones are fine.
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Please Review Att to Tmobile lg g2
Understand that Phone may or may not be unlocked. But you need correct APNs to make Data and MMS Work. You need SIM unlocked to get a Signal with T-Mo Sim. Same with your other phone the S5. Please review SM-G900T on AT&T MMS problem
Please post on the respective threads if you continue to have issues.
Perseus71 said:
Please Review Att to Tmobile lg g2
Understand that Phone may or may not be unlocked. But you need correct APNs to make Data and MMS Work. You need SIM unlocked to get a Signal with T-Mo Sim. Same with your other phone the S5. Please review SM-G900T on AT&T MMS problem
Please post on the respective threads if you continue to have issues.
Click to expand...
Click to collapse
Thanks, I tried to set up the APN again, but still get kicked back to the mobile network folder when it tries to connect automatically...I can not connect to the network, it doesn't get that far, it keeps putting me back two folders back.. If this is the wrong thread, Please direct me to the correct one. I read the thread that you referenced above, but my phone won't get that far in the process, and therefore that thread does not go deep enough. Am I missing siomething else?
I will check on the Sim unlocked issue, mine would be locked.
Thanks for your time.
Woody3
Please post in the Forum T-Mobile Galaxy S 5 Q&A, Help & Troubleshooting or T-Mobile G2 Q&A, Help & Troubleshooting
as appropriate.
Thread Closed. Thank you.

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