Need help. Can't send SMS but can receive.

[tomcat65]

The number u need to put in is :
0713121139418f0
If you can't get to the hidden menu, the code to get to it is
*#*#4636#*#*
Then go to phone information scroll to smsc enter number above and press update. Test sending a text message to itself or to a close friend and see if it works. If it did ur back in business if not u may have to capitalize the f

Sent from my SGH-I777 using xda premium

I have the same problem and followed these instrutions and the number 0713121139418f0 didn't work with or with out capiltol f

 

[CanuckinPA]

As of a day ago I am not able to send texts, but can receive them. I flashed the 8-03 nightly of Carbon ROM and the problem started.

I've refreshed the SMSC number and manually updated it with the message center number provided by ATT, but it would not accept the number (+13123149810)

I fear having to flash back to stock and then start over, but hope someone can help with an easier solution.

 

[tehjosheh]

FIXED on AT&T Network

I solved this issue for my girlfriend's phone on AT&T.

After a few hours of research i discovered the issue was two fold:
1) Phone cannot send text messages through 4G (so disabling 4G LTE - i know this sux, and instead using HSPA - not thaaat bad)
2) Cannot change the SMSC phone number the texts will go through

Here is what I did:
1) Rooted her phone using Kingroot (very easy 1-click root tool)
2) Downloaded and installed the app Advanced Signal Status
3) Opened Advanced Signal Status app and clicked "Additional Info" (this opens the phone's hidden menu only accessible after rooting)
4) Under SMSC I changed the field to "+13123149810" for AT&T and pressed update
5) I changed the preferred network type from LTE/GSM to GSM Auto (this disables 4G LTE and only uses HSPA)
6) Restarted the phone and it was able to send SMS messages thereafter.


Good luck!

 

[vreach]

thanks for the help and tips mga sir

mga Sir maraming salamat po maraming salamat po talaga naayos napo sms ko thank you thank you muntik ko na e flash rom ko buti nalang po nandyan kayong lahat na tumutulong saamin