hi dudesss, sorry for the delay and thanks for the helpfull site, i learned from you that i have to made search before posting and describe the problem in a professional way.

I am using a jailbreak with ultrasnow iphone 16GB (3.0 OS 04.26.08 Modem Firmware) using Vodafone sim card and while i try to send sms i got a problem that you message cannot be send with no error code, i can make/receive calls and receive sms too but cannot send sms.

I tried to change the carrier i used another sim card with another carrier( QTEL) i can send sms perfectly.

I tried to check the message center number and the message center is ok.

It's a strange problem, hope to help me as usual and thanks for your previous cooperation.

To all of you who are still having problems sending out sms-es, you can try the following fix and see if it works.

Before you start you need to know the SMS service centre number of your operator. Find that out.

Step 1 - Checking what number is set as your SMS service centre number

Launch your iPhone keypad and type -

*#5005*7672#
Press Call

You will get a response that tells you the number that has been set as your SMS service centre number. In all probability, that number is missing a digit or is wrong.

Step 2 - Erasing the incorrect SMS service centre number

On your iPhone keypad, type -

##5005*7672#
Press Call

You will get a response that tells you that the service centre has no address or something to that effect. It means it has been erased.

Step 3 - Setting the correct the SMS service centre number

On your iPhone keypad, type -

**5005*7672*+nnnnnnnnn#
Press Call

Note - nnnnnnn is the number of the SMS service centre number that you need to find out in the first place.

You should get a response telling you the number has been set. If the response says No Address, you can use Step 1 to check the number.

Hope this helps.

Having the same issue except my carrier is T-mobile everything else is the same as djfento. This only started happening a few days ago, I think I may have inadvertently updated to the newest ver of ultrasnow which I'm guessing broke my sms. It was working for quite a while with the older .7 version with no problems. I spent quite a bit of time talking w/ tmobile about it and they tried to help to no avail, I actually used pretty much all those commands that you described mah6447 but they dont fix this problem . Does anyone know of a way to get access to an older version of ultrasnow to install?

@Mah6447
Thank you so much!!!!
You solved my problem!!!

I have a 2G iPhone, with OS 3.0 jailbraked with redsn0w.

I use Movistar in Argentina.
I had to change sms service center to +54079000801

thank you so much for your help!!!

@Mah6447

thanks for your advice, it;s the first think that i thought about it but it didnt fix the problem..sms service center is ok but still cant receive sms i dont know what is the problem, maybe some update for the baseband will fix this issue.

waiting for the 3.1 final.

thanks.

Up....!!!!

Why? Do NOT, whatever you do, upgrade to 3.1 if you want US to work.
I have not heard of anyone else not being able to send texts. I don't believe this is a US problem.

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