vendredi 4 mars 2016

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.


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