Follow this guide closely, carefully, and exactly what it says.
REMINDER: You should already have uploaded the Carrier file and entered the settings for MMS.
1. Put your iPhone SIM in another phone.
2. Call atleast 2 people with your SIM in another AT&T phone.
3. Go to wireless.att.com
4. Sign in to your account
5. Click on your number/name
6. It should show you what phone you're using. If it still shows an iPhone and says 'Apple iPhone 3G S' then repeat step number 2
7. Go to the 'Features' tab and scroll down to the messaging plans.
8. Chose a messaging plan that's not an iPhone one.
9. Scroll to the bottom, and click next until it says you're done.
10. Call AT&T and tell them your MMS isn't working. They may ask you what your number is and what phone your using. Tell them you're phone is XXX and tell them your cell number (the number that your SIM is on)
11. They might ask you if you've had an iPhone before. Tell them you're switching phones.
12. Once/If they enable it, you should be good.
There you go! (written completely by me)
REMINDER: You should already have uploaded the Carrier file and entered the settings for MMS.
1. Put your iPhone SIM in another phone.
2. Call atleast 2 people with your SIM in another AT&T phone.
3. Go to wireless.att.com
4. Sign in to your account
5. Click on your number/name
6. It should show you what phone you're using. If it still shows an iPhone and says 'Apple iPhone 3G S' then repeat step number 2
7. Go to the 'Features' tab and scroll down to the messaging plans.
8. Chose a messaging plan that's not an iPhone one.
9. Scroll to the bottom, and click next until it says you're done.
10. Call AT&T and tell them your MMS isn't working. They may ask you what your number is and what phone your using. Tell them you're phone is XXX and tell them your cell number (the number that your SIM is on)
11. They might ask you if you've had an iPhone before. Tell them you're switching phones.
12. Once/If they enable it, you should be good.
There you go! (written completely by me)