iPhone Theme Store

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Emotions

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Faith

Those of you on a 3.0 or 3.0.1 jailbroken iPhone who were anticipating the iPhone MMS release last week might have been disappointed by the fact that you have to be on the latest 3.1 firmware to download and install the carrier update. Rejoice because there is a simple hack that will allow you to have MMS on your iPhone.

1. First, download the AT&T Profile .IPCC 5.5.

2. Make sure iTunes is closed and run one of these commands, depending on your operating system:

On Windows: Note that it took me a few minutes to get this to work… It seems I was always typing something wrong.

• Windows XP: Go to “Start”, click on “Run” and type “cmd” then hit Enter. Now type the following: cd C:Program FilesiTunes and hit ENTER then type iTunes.exe /setPrefInt carrier-testing 1 and hit ENTER
• Windows Vista: Go to “Start” and type “Command Prompt” in search and then hit ENTER. Now type the following: cd C:Program Files (x86)iTunes and hit ENTER then type: iTunes.exe /setPrefInt carrier-testing 1 and hit ENTER

On Mac OS X:

Open Terminal by going to Applications > Utilities. Type the following: defaults write com.apple.iTunes carrier-testing -bool TRUE and hit ENTER.

3. Launch iTunes and plug your iPhone. PC users should hold the SHIFT key on their keyboard (Mac users should hold the ALT key) and click on CHECK FOR UPDATE, while still holding the SHIFT or ALT key. A windows will pop up.

4. Navigate to the .IPCC file we downloaded in step 1.

5. It will update your iPhone, which should take just a few seconds.

6. Unplug your iPhone and reboot it.

7. You should now have MMS enabled.

Some people report loss of cellular data network and loss of visual voicemail. I haven’t experienced any of that but if you do, here is how to fix it.

Go to Settings > General > Network > Cellular Data Network to update your configuration.

• Visual Voicemail change wap.cingular to acds.voicemail
• MMS settings should match the following (leave blank fields blank):

APN: wap.cingular
Username:
Password:
MMSC: mmsc.cingular.com
MMS Proxy: 066.209.011.32
MMS Max Message Size: 614400
MMS UA Prof URL:

That’s it. As usual, since this is a hack, you are taking the risk of messing up your iPhone…

Source:
How to Enable MMS on iPhone OS 3.0 or 3.0.1

Every time there is a new firmware coming out, updating puts you at risk of updating your baseband as well, making it impossible to unlock your iPhone. This time is no different than the others and many people accidentally updated their iPhone to firmware 3.1, updating their baseband to 05.11.07 at the same time.

Fortunately, there is an easy way for iPhone 3G users to downgrade their baseband from 05.11.07 to 04.26.08. Note that this is for iPhone 3G users only. If you have an iPhone 3GS, then read my article on how to downgrade the iPhone 3GS firmware from 3.1 to 3.0.

1. First, your iPhone 3G has to be jailbroken. For more information, read my iPhone 3.1 jailbreak article.

2. Launch Cydia and search for the Fuzzyband app. Install it and reboot your iPhone.

3. Launch the Fuzzyband app and tap “downgrade” to start downgrading your baseband from 05.11.07 to 04.26.08.

4. Reboot your iPhone. You should now be on baseband 04.26.08 and be able to jailbreak and unlock your iPhone using UltraSn0w.

Note that downgrading only works on iPhones that have the 05.08 (5.8) bootloader from the factory, which is just a very limited amounts of iPhone 3G that were released in the first few weeks of the production cycle. If you don’t know your bootloader version, you may run Fuzzyband and it will tell you what version you have and whether or not you can downgrade your baseband.

Source:
How to Downgrade iPhone 3.1 Baseband From 05.11.07 to 04.26.08

Source:
Evo Spolier