How to Enable MMS on AT&T iPhone 3G/3GS 3.0 or 3.0.1 using Mac

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Be aware:&#one hundred sixty;If you’re on iPhone three.1 firmware, observe my&#one hundred sixty;Permit iPhone 3G/iPhone 3GS MMS replace via iTunes&#one hundred sixty;as a substitute.

Quit iTunes

1. In case you have&#a hundred and sixty;iTunes&#a hundred and sixty;open, then proper-click on and click on&#one hundred sixty;Stop&#one hundred sixty;to shut iTunes.

Open Terminal

2. Go to&#one hundred sixty;Functions -> Utilities&#a hundred and sixty;and open the&#a hundred and sixty;Terminal&#a hundred and sixty;software.

ATT IPCC Command in Terminal

three.&#one hundred sixty;Copy and paste the following command in to Terminal: defaults write com.apple.iTunes carrier-testing -bool TRUE

Return key

4. Press Return on your keyboard.

AT&T US IPCC

5. Download IPCC file (this IPCC File is the latest 5.5 file that AT&T released in iTunes today, right click this link and save it as ATT_US.ipcc).

Open iTunes

6. Connect your iPhone 3G/iPhone 3GS to your computer and open iTunes.

iTunes Update

7. Press Option on your keyboard and at the same time click on Update in the iTunes window.

AT&T iTunes IPCC

8. Locate your ATT_US.ipcc file you d
ownloaded in step 5 and click Choose.

9. Time to reboot your iPhone. Hold down the top button of your iPhone until the “slide to turn off” message appears, slide and turn your iPhone off. Turn your iPhone on again and it should have MMS on it!

Command Pompt

1. Open Command Prompt (it’s in Program Files -> Accessories).

iTunes command

2. Copy and paste the following command and press enter:

cd C:Program FilesiTunes

I
f you’re using a 64-bit operating system use the following command instead and press enter:
cd C:Program Files (x86)iTunes

iTunes IPCC command

3. Copy and paste the following command in Command Prompt and press enter:

iTunes.exe /setPrefInt carrier-testing 1

ATT IPCC file download

4. Download IPCC file (this IPCC File is the latest 5.5 file that AT&T released in iTunes today, right click this link and save it as ATT_US.ipcc).

Open iTunes

5. Connect your iPhone to your PC and open iTunes.

iTunes Check for Update

6. Click Shift on your keyboard and at the same time click Check for Update in the iTunes window.

iTunes ATT IPCC file

7. On the right-hand side there should be a drop-down, click on it and select “iPhone Carrie
r Configuration files (*.ipcc)
“, find the ATT_US.ipcc file and then click Open.

8. Reboot your iPhone. MMS should now be working!

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