im on digi and having this same problem, well previous thread stated have to update the ipcc on iphone. I am trying my best to update it. Refer here :
http://forum.lowyat.net/topic/752226

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Added on June 29, 2009, 11:31 pmbro u have to upgrade to OS 3.0 first.

This post has been edited by rattan: Jun 29 2009, 11:31 PM

DiGi user here, finally after 3 hours of trying, my 2g iphone can send and receive mms (tested kaw kaw)

Sent to a Nokia and received a MMS from a Nokia/Iphone3g too. Works like a magic.

I learn that, firstly u need to be on OS 3.0 , secondly update yr ipcc ( very important or else wont work, for DiGi user your carrier must show DIGI 4.1, under Settings -> General -> About ) Then finally install the "ActivateMMS2G" from cydia and follow the instruction. I did "ssh" follow Method 2 (SSH) on the first post of this thread.

After that finally i restarted the iphone, went to the "Cellular Data Network" KaBoomm the settings all were already there. Didnt disappear.

All the best trying.

This post has been edited by rattan: Jun 30 2009, 01:45 AM

it takes around 15-20 seconds

yeah i also tested/compared against the 3g (maxis set) same results. Its identical.

today i realized, suddenly the mms settings under the "Cellular Data Network" went missing again and my Carrier was 4.1, all out of a sudden. Updated the ipcc file now, n its back to 4.0 and the settings is no longer disappearing.

Weird uh...or maybe the phone is updating the carrier version itself ? could that be possible ?

miskol : thanks sharing the tip... more data = more money (unless on unlimited data plan then who cares)

Like for me i am using digi prepaid, their data chargers are just so ridiculous, i very seldom surf on EDGE, but now with the MMS function is working on my 2g, no excuse not to use.

thanks again for sharing the useful tip of turning off EDGE to reduce data usage.

This post has been edited by rattan: Jul 2 2009, 01:58 PM

im still having the same issue, after updating the ipcc file mms works, after a few days the setting automatically goes missing again. have to update the DiGi ipcc file again via itunes. anyone know why ? The network carrier version also changes automatically to 4.1 after updating goes back to 4.0 , all this happens automatically.

Is digi updating it ?

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Added on July 8, 2009, 11:23 pmanyone facing this same issue ?

This post has been edited by rattan: Jul 8 2009, 11:25 PM

i still dun understand why the mms settings under Celluar Data Network always goes missing, i have to update the ipcc file again and again or else it wont work.

Anyone know why ? Im on digi , carrier version 4.0 (after updating the .ipcc through itunes)

well for what i heard from a maxis customer service rep is that they do not charge for data if u send MMS, they only charge you flat rate for the MMS, there is a limit of 300kb for MMS. I am not sure.

If I am not mistaken if receive MMS they charge or not. Quite confusing and they are not very direct on this matter. Need to investigate further.

have anyone try if the this same method works on iphone 2g firmware 3.1 ?

fw ver 3.1 do not support the mms function yet for 2g. hv to wait till someone find away out

I dont know if someone asked this question before or not ?
How to enable internet tethering in iphone 2g version 3.1.2 ? ?