I got mms going on an A930 yesterday. I have tried it a couple times, but never had success.
I had to come up with a new method, and it's probably gonna help out with a lot of samsung models.
The problem was that SamsungPST would not read/write to the A930. It gave me an "Invalid Password" error, and I tried every dll I had. Sometimes it would just crash when reading the phone. The MSL is 000000, so I think the "Invalid Password" error refers to the phone's internal 16-digit security password, which must be erabedded in the DLL for a particular phone#.
What I had to do, was use SamsungPSTLite to read the settings from the A930. I think I used the u740 DLL, since it was the most complete. Once it read the settings, I could not change most of the important items using Lite, so instead, I saved the settings to an .MMC file.
Ah-haa! You can start to see where this post of leading....
Now open up SamsungPST, which cannot read the phone, but it will open your saved .MMC file. Now edit whatever you need to edit, save the .MMC file, and exit out of SamsungPST.
Now open SamsungPSTLite, load the .MMC file, and write it to the phone.
Voila, working wap on the A930.
Jay