I receive text messages but cannot send them!!

Check the SMS messaging center number.

When I put it in another phone, I can send texts, so it comes from the phone. But thanks anyway.

It's done and it's the right number.

What kind of phone is it?

Don't know personally, but I suggest you back up your mobile
Then do a hard reset, completely erase it to have memory like it just came out of the factory
Then retest
And if it still doesn't work, the mobile should go for repair.

Hi everyone,
I have the solution for the issues with sending and receiving MMS (I have a Nokia Lumia 635, Bouygues Telecom operator)
Anyway, I struggled but it works (on Bouygues' website, they got it wrong, probably to go visit a store...)
INTERNET APN
APN: mmsbouygtel.com
Authentication type: PAP
IP: IPv4v6
MMS APN
APN: mmsbouygtel.com
Authentication type: PAP
WAP URL: 62.201.129.226
WAP: 80
MMSC URL: http://mms.bouyguestelecom.fr/mms/wapenc
MMSC PORT: 80
IP: IPv4v6
The rest of the fields were not filled.
Good luck!

Hi everyone,
I have the solution for the problems with sending and receiving MMS (I have a Nokia Lumia 635, Bouygues Telecom operator)
Anyway, I struggled but it works (on Bouygues' website, they made a mistake, probably to go visit a shop...)

• • • APN INTERNET***

APN: mmsbouygtel.com
Authentication type: PAP
IP: IPv4v6

• • • • APN MMS***

APN: mmsbouygtel.com
Authentication type: PAP
WAP URL: 62.201.129.226
WAP: 80
MMSC URL: http://mms.bouyguestelecom.fr/mms/wapenc
MMSC PORT: 80
IP: IPv4v6
The rest of the fields were left blank.
Good luck!

<translate>Okay, thank you very much, but how do you perform a hard reset?</translate>

a Sony Ericsson Vivaz U5