[HOW-TO] Reenter your lost SMSC number

Taraen

Senior Member
Sep 30, 2011
213
156
0
[HOW-TO] Reenter your lost SMSC number
Fix not sent SMS messages​
Hey, you just flashed an ICS ROM and found out that you can't send SMS messages anymore? You flashed back to Gingerbread and it did not help?

In this case probably your SMSC number has been deleted. I've had that problem too and found several webpages that said "Do this", "Do that" and finally you shall enter your SMSC number and tap on update. Well, indeed that's basicly it, but there's one problem: You will get an update error, because you can't simply enter "+4912345..." into the little box.

"But how can I update my SMSC number?"
Well, for this you have to do a little step before you can do that. The number has to be converted into the PDU format. To do that go to this page: http://www.twit88.com/home/utility/sms-pdu-encode-decode and look for "String sms message". There is a little editbox which says: "SMSC +019000001". Enter your own SMSC number here and klick on "Convert" below. The big textbox "Hexadecimal PDU Message" will update and will show something similar like this:
Code:
AT+CMGW=24
[U][B]0791349124722037[/B][/U]11000A9210299232900000AA0CC8F71D14969741F977FD07
The first 16 numbers which are underlined are your converted smsc number.

"All right and were shall I enter it?"
Open your phone app and enter "*#*#4636#*#*" after that a new window will open. Select "Phone Information" and scroll down. There will be a little box "SMSC ". Enter your converted SMSC number (in this example: 0791349124722037) and tap on the left button which says "Update".

"That's all?"
Yes you're done, but how about leaving a little comment? :)

I have created this thread because while searching with google I have found tons of websites that did not mention the PDU conversion and so I have thought it is good to have it here... ;)
 
Last edited:

linus98

Senior Member
Dec 22, 2008
240
28
0
Palermo
Hello, I tried following your guide, but I have not solved the problem of sending MMS. But now I can not set the old SMSC number. Can you help?

EDIT: Thanks, but I solved by putting the SIM in an old phone and restore code SMSC.

Excuse my English.
 
Last edited:

El Ha$on

Senior Member
Mar 9, 2009
573
100
0
NYC
I dont have a galaxy but i keep running into this issue.

Plus im on sprint, and when i go into the phone to update the SMSC number i keep getting update error.

I have been searching but i can not find anything that has helped.
 

xplayed

Member
Jun 12, 2012
16
10
0
[HOW-TO] Reenter your lost SMSC number
Fix not sent SMS messages​
Hey, you just flashed an ICS ROM and found out that you can't send SMS messages anymore? You flashed back to Gingerbread and it did not help?

In this case probably your SMSC number has been deleted. I've had that problem too and found several webpages that said "Do this", "Do that" and finally you shall enter your SMSC number and tap on update. Well, indeed that's basicly it, but there's one problem: You will get an update error, because you can't simply enter "+4912345..." into the little box.

"But how can I update my SMSC number?"
Well, for this you have to do a little step before you can do that. The number has to be converted into the PDU format. To do that go to this page: http://www.twit88.com/home/utility/sms-pdu-encode-decode and look for "String sms message". There is a little editbox which says: "SMSC +019000001". Enter your own SMSC number here and klick on "Convert" below. The big textbox "Hexadecimal PDU Message" will update and will show something similar like this:
Code:
AT+CMGW=24
[U][B]0791349124722037[/B][/U]11000A9210299232900000AA0CC8F71D14969741F977FD07
The first 16 numbers which are underlined are your converted smsc number.

"All right and were shall I enter it?"
Open your phone app and enter "*#*#4636#*#*" after that a new window will open. Select "Phone Information" and scroll down. There will be a little box "SMSC ". Enter your converted SMSC number (in this example: 0791349124722037) and tap on the left button which says "Update".

"That's all?"
Yes you're done, but how about leaving a little comment? :)

I have created this thread because while searching with google I have found tons of websites that did not mention the PDU conversion and so I have thought it is good to have it here... ;)
Thank you so much i was pulling my hair out over this. I had the message center number but had no idea about the PDU conversion. It's also worth noting that you can check the PDU is correct by pasting the first 16 characters into "Hexadecimal PDU message"(its ABOVE the smsc box) and pressing convert. It will convert it back and you should see your message centre number you entered down in the SMSC box in the "Readable PDU message" box. If not, you've copied the wrong digits. It's Best to copy ONLY the first 16 chars as you are checking only your SMSC.
 
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WonkyYew

Member
Dec 29, 2011
34
11
0
Dublin
Dude Thanks so much for this, Vodafone have been trying to figure this out and knew nothing about the conversion and then tell me my phones broken !!! Shows you how much they know !!! Much Appreciated my friend really good help !!
 
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RamakantSingh

Member
Nov 11, 2014
9
3
0
Galaxy Grand Duos (GT-I9082) on CM11

Hi Buddy,

Many thanks for this thread.
I tried the steps but didn't help me on my Samsung Galaxy Grand Duos (GT-I9082) upgraded to CM 11-20141008 build.
Neither settings are not stored nor after updating the code SMS sending works.
I have verified the SMSC no.

Request priority advice.

[This is my only work and R&D phone, need to get functionality up soon to avoid awkward situation]
//RK
 

RamakantSingh

Member
Nov 11, 2014
9
3
0
SMSC code

Hi Buddy,

Many thanks for this thread.
I tried the steps but didn't help me on my Samsung Galaxy Grand Duos (GT-I9082) upgraded to CM 11-20141008 build.
Neither settings are not stored nor after updating the code SMS sending works.
I have verified the SMSC no.

Request priority advice.

[This is my only work and R&D phone, need to get functionality up soon to avoid awkward situation]
//RK
Friends,
I got the issue fixed. :)
The SMSC code is to be entered in the PDU encoder as + Country Code & SMSC number e.g. +91991xxxxxxx in the box under header "String sms message". Select 7bit "Alphabet size". Remove the text message . Thereafter hit "Submit" button. The hexadecimal PDU message created will be something like "AT+CMGW=8
0791198922700800110000910000AA00".
Use first (from left) eleven (11) digits from this code and enter in the phone.
Many Thanks for support and guidance by all and most importantly this site for rescue.
Regards,
//Ramakant
 

Britch3s

Senior Member
Sep 10, 2016
77
10
0
30
Grayson
[HOW-TO] Reenter your lost SMSC number
Fix not sent SMS messages​
Hey, you just flashed an ICS ROM and found out that you can't send SMS messages anymore? You flashed back to Gingerbread and it did not help?

In this case probably your SMSC number has been deleted. I've had that problem too and found several webpages that said "Do this", "Do that" and finally you shall enter your SMSC number and tap on update. Well, indeed that's basicly it, but there's one problem: You will get an update error, because you can't simply enter "+4912345..." into the little box.

"But how can I update my SMSC number?"
Well, for this you have to do a little step before you can do that. The number has to be converted into the PDU format. To do that go to this page: http://www.twit88.com/home/utility/sms-pdu-encode-decode and look for "String sms message". There is a little editbox which says: "SMSC +019000001". Enter your own SMSC number here and klick on "Convert" below. The big textbox "Hexadecimal PDU Message" will update and will show something similar like this:
Code:
AT+CMGW=24
[U][B]0791349124722037[/B][/U]11000A9210299232900000AA0CC8F71D14969741F977FD07
The first 16 numbers which are underlined are your converted smsc number.

"All right and were shall I enter it?"
Open your phone app and enter "*#*#4636#*#*" after that a new window will open. Select "Phone Information" and scroll down. There will be a little box "SMSC ". Enter your converted SMSC number (in this example: 0791349124722037) and tap on the left button which says "Update".

"That's all?"
Yes you're done, but how about leaving a little comment? :)

I have created this thread because while searching with google I have found tons of websites that did not mention the PDU conversion and so I have thought it is good to have it here... ;)


Dude near 2 hours on the phone with str8 talk and countless days past since I've searched n searched... I would lick your nut sack if I didn't like ***** so much...my comment will probably be deleted. But in any case to ANYONE THAT CANT USE THE *#*#4636#*#* OR THAT DOESNT HAVE THE MESSGAE CENTER NUMBER IN THEIR SETTINGS IN THE MESSAGE APP THEN FEAR NOT BC ITS IN your network mode settings I tried several codes none took me there. So I download force LTE from the play store or anyone of them will do that I've used... and that big ass SMSC that says updated refresh well that's it it's right there. And I'm supposed to know alot about phones and computers but this gave me nightmares....anyways thank you to the o.p. who probably won't see this anyways but your method needs updated a tad. With a 3rd option to find that setting. Jus download an app for LTE switching from Google or apkpure or wherever. Thank you thank you thank you!!!