[Q] Can I use a Diamond from another carrier?

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Hey, I would like to know if I could use a sprint Diamond or Touch Pro on another carrier. The carrier I would like to use it with is cellular south.

Hey, I found your question!! Ok, well since your Diamond is security unlocked, I believe the answer is yes, look into a rom on PPCgeeks.com called Energy Rom, I am using his latest release, there are two posts for Energy Rom so make sure you get the newest one, anyways, included in this rom is what he calls Carrier Provisioning, it has Sprint as well as Cellular South in there.
Let me know how it works out for you!

EDIT: Hey, I figured I should link you to the page so you dont have to hunt!
http://forum.ppcgeeks.com/showthread.php?t=74084

click the blue button that says "Download" NOT the one that says "Download all Roms Here"

So once I unlock and install the rom, how exactly do I activate it over cellular souths network if it came from sprint? and thank for reply lol I never got replys on my questions except for battery issues.

Also do you have info for me about the touch pro, becaue im fixing them and want to flash them to cellular south because thats the most popular carrier where i am.

Ok, from what I understand about switching carriers is this, once you use the carrier provisioning, you need to use the attached program called Phone Codes.cab, what this does is allows you to do a manual setup of the phone, on a stock rom(shipped rom) you would do this by going to the dial pad and typing in ##somenumber#, but that doesn't work on most custom roms so someone(cant remember who to give credit to, SORRY DEV) made this app to access the hidden setup menus. Call cell south and tell them you are doing a manual activation of your new phone and that you need the pin number used to log in to the setup, then have them tell you what to change and what to change it to! I know it sounds like a lot, but its really not, also if you dont think you can do this alone, just install the phone codes.cab and go to a cell south location and ask a tech guy to do the setup, but make sure to tell them they have to use the program because they cant access it through the dial pad!
Wow, that was a mouthful
As far as the touch pro, as long as its a cdma phone, you might be able to program it to cell south, I have never used that phone unfortunately so I don't want to give you terrible advice. I will always try to help since XDA has always been good to me!

Thank you so much for the info!!! You really helped, could you recomend me a rom for my touch diamond? I like eye candy and performance, I always have problems with custom roms "fm radio not working, gps not working, data not working... etc...

I have tried almost every rom I could find, I have to say there are three that stood out, 1st is Moonscapex's "1.6"(fast, light on mem, and a beautiful black theme), 2nd is "Very Lt. Sense" from Dev O.a.T.(I liked this one because it includes Max Sense, I think its the only rom for the Diamond that does, but it uses up a bit more mem), the 3rd is "Energy Rom" from Dev NRGZ28( my personal favorite, it is good on mem, has in my opinion a beautiful theme, and is highly customizable). So those are just my favorites, I still use my Sprint Hero as a daily phone, so I have had an opportunity to flash a lot of roms and add-ons to my Diamond and I can honestly say there are bugs in quite a few roms but the three I suggested are the most stable I have used.
Now for the fun stuff, I am an early adopter of the android platform, so I am of course going to suggest XDAndroid, this is not flashable, I mean it will not replace WM, think of it as Parallels(a virtual machine), it is fairly simple to add to your phone, it is not the most functional at this point but the Devs involved are working very hard, and it is working well enough at this point that you can run it and see if you like Android(I know you will), and I think its great that we have a choice of 1.6/2.1/or 2.2!!
Also, XDA is great, really my favorite community, so it embarasses me to say this, but for roms for our CDMA Diamonds PPCGeeks.com is the place to go.
Ok, well let me know if there is anything else

links:
Moonscapex's "1.6" - http://forum.ppcgeeks.com/showthread.php?t=114974

O.a.T.'s "Very Lt. Sense" - http://forum.ppcgeeks.com/showthread.php?t=127266

NRGZ28's "Energy Rom" - http://forum.ppcgeeks.com/showthread.php?t=74084

XDAndroid - http://forum.xda-developers.com/showthread.php?t=701566