SMS Messages received but not sent FIX

So I had a problem with SMS messages not sending today. I determined what I believe to be a solid fix.
1. Plug phone into AC outlet.
2. Reboot phone.
3. Open dialpad and type in *#*#4636#*#*.
4. Scroll to the bottom and locate SMSC number box.
5. In this box type in your SMSC number in pdu format.
6. Click update.
7. Wait 3 minutes.
8. Send an SMS (text message).
07913121139418F0 is the ATT SMSC number in pdu format. Normal is +13123149810.



I will update with all ATT numbers converted and sorted by region. I will also provide tmobiles list. This should also work on most other androids. Hopefully this will be a stickie soon...?...?...

Sent from my Nexus S using XDA Premium App

SMSC number lists
Numbers will be in normal format then pdu format.

Example:
+13123149880 is normal.
07912160130300f0 is pdu format.

Use directions in OP to use these numbers. Gingerbread 2.3.3 and earlier used normal format and 2.3.4 and up uses PDU. This is to the best of my knowledge, of course, and I also believe it will work the same with other Androids as well



T-Mobile


+12063130004=07912160130300f4


AT&T


New & Existing Customers
+13123149810=0713121139418f0

Former Customers
+19703769301=07919107739603f1

Former CellOne from Dobson Customers
+13305310005=07913103350100f5

Central Region
+16363848801=07916163838408f1
+16363848815=07916163838418f5
+16363848845=07916163838448f5
+16363848870=07916163838478f0

Great Lakes Region
+13123149600=07913121139406f0
+13123149860=07913121139468f0
+13123149870=07913121139478f0
+13123149880=07913121139488f0

NorthEast Region
+14047259015=07914140279510f5

SouthEast Region
+14047259000=07914140279500f0
+14047259015=07914140279510f5
+14047259060=07914140279560f0
+14047259245=07914140279542f5
+14047259246=07914140279542f6
+14047259247=07914140279542f7

South East Region (DCS)
+17044100000=07917140140000f0
+17045020600=07917140050206f0
+17045020700=07917140050207f0
+17045020800=07917140050208f0

West region
+12099042010=07912190092410f0
+12099042020=07912190092420f0
+12099042030=07912190092430f0


Sent from my Nexus S using XDA Premium App

UPDATE: some phones are having errors updating the SMSC number. Double check your APN settings and verify you have an data connection. This is seemingly the cause of a failed update of the SMSC number, no data/missing or bad APN.

Sent from my SAMSUNG-SGH-I727 using xda premium