Best will be to set the message centre number over again from the message settings............look for the sim pack manual for the message centre number.
To make it easy you can insert the sim in a nomal phone (not a smart phone)
go to the message settings and make the changes from there.
re-insert the sim back in your smartphone and try sending messages again.
Another option
enter *#*#4636#*#*
should display a "Testing Menu"
Choose phone information and scroll till you find "SMSC" section
click on "refresh" and if it gives an error then you will have to enter the message centre number in an international format and click on "update"
Note that sometimes the message number can be in a code form and that will need to be converted before entering that code read more here SMSC Updates CyanogenMod )
Please do let me know the outcome.
SOURCE: Can't send or download any multimedia messages
check your service provider this is a pay service and they could be the problem not your phone
I’m happy to assist further over the phone at https://www.6ya.com/expert/james_1cb31da1bc8c6102
SOURCE: Sony Ericsson T303
As regards the ringtones, have you just put the volume down, as I did this unintentionally and couldn't hear the ringtones until my son turned the volume back up for me - by pressing the up button while ringtone is playing.
SOURCE: can't send text message. "unable to send message"
Hi,
check your message centre number..If its edited or deleted..u cant send or receive any messages..contact your operator for tat number..
SOURCE: phone not receiving/sending text messages
reset or format the phone..... backup ur data first...
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For the brains behind these answers, step back. This is coming straight from a cricket wireless employee it is the phone and an easy fix...go into play store search for messaging "the green smiling speech box" by softcoil llc. ILL save the details as to what happened but it has to do with core android software and conserve battery consumption. Remove old messaging and replace with new one...no more error messages
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