I do not have the Samsung, but i do own a DDR version of the LG VOLT. I had a Beyond Talk LG VOLT, and rooted, custom ROM, when it broke, i wanted another LG VOLT. Beings $100 Cheaper at WalMart and not knowingD this DDR crap, i got screwed with a DDR version phone. Headache from DAY # 1!
I had to get a special plan, loosing my unlimited everything for $30 a month i was grand fathered into, To pay $15 more a month for the same thing. Well I flashed a custom ROM on it, Texts and Calls worked great. BUT it would NOT get any Data services. Data on DDR relies on Zact / ItsOn services when the others didnt. I have extracted the ItsOn services .apk from the stock DDR Firmware and were trying to install it on a custom ROM and received mixed results.
Samsung used Odin and .tar files for origional firmware, where my LG uses the LG Flash Tool and a .tot file to downgrade back to stock. The one thing I did find that works, if if you put a custom ROM on my LG "DDR" phone you CAN FlashTool the stock *NON DDR* "z3" firmware back onto it, and once you update the Profile and PRL and HFA (HAS TO BE through WIFI the Initial set-up) that the ItsOn.apk services and Zact will push OTA through the phone and you can get your "DDR" device back to normal.
I dont know coding or anything special, Just a basic Trial by Error Tinker'er, I have been ALL over the net looking for DDR compatible custom ROMs, or a way to make them work, and with the DDR /WalMart ONLY (BS) so unpopular i dont see anyone coming up with anything and DDR will eventually be a dieing fad.
That and you will start getting ERROR CODES when you try to place calls where you have to call in to DDR and they transfer you to Google's Authentication or whatever crap just to get it fixed. It left me without a phone for 2 Weeks fighting those MF'ers.
In my Personal opinion, everyone should STAY AWAY from "DDR" because its Data Done WRONG in the end.
Does anyone else have any experiences with this? Not many search's return Data Done Right results except for being from Virgin Mobile websites themselves...