UNLOCKING A USED SPRINT cdma blackberry - RIM BlackBerry? Curve 8330 Cellular Phone

http://lgunlockcode.org/products/LG-LS670-Optimus-S-Unlock-Code.html
usually one must buy a code or find and download world unlocker that MAY work?
http://www.softpedia.com/get/Internet/Telephony-SMS-GSM/WorldUnlock-Codes-Calculator.shtml

Hi,

Let me help you here. If you require a trusted and yet cost effective and affordable code with high quality and good customer support service, then you can unlock your blackberry 8330 from Blackberry unlocking codes with IMEI. I hope this would turn out to be helpful for you :)

You can only unlocked phones that are GSM (Uses a SIM CARD)..SPrint is CDMA (NO SIM CARD) network and cannot be unlocked

Now you can unlock CDMA only set too. So you can use nextel/sprint cdma to other cdma network in usa too.
http://blackberryunlock.mobi/

Now you can unlock CDMA only set too. So you can use nextel/sprint cdma to other cdma network in usa too.
http://blackberryunlock.mobi/

At blackberrymep.com you can unlock any blackberry handset, but as far as i know 8330 is a CDMA handset .

no.....AT&T uses GSM and Sprint uses CDMA service.......although sprint doesnt require a sim card, that device does in order to work on a network. Now i don't like to say that anything is impossible, but you would need professional equipment and/or software to program a sim card to trick the device into thinking it is CDMA. Even if you where able to set this device up as CDMA you would have to contact Sprint to have them enter the HEX/DEC into there system to be recognized......so all this was to say NO ATT and Sprint cannot interchange devices due to their fundamental hardware differences. That device can be unlocked though to be used on other GSM services however like T-Mobile / Cellular One and other local providers in your area. GOOD LUCK AND PLEASE RATE THIS POST!!!!
P.S. i would recommend finding someone who has switched from sprint to ATT that had a nice Sprint phone to trade with......be cautious and call sprint customer service to verify that the ESN is clear. If there is a hold on the ESN it is rendered useless on the Sprint Network until the acct attached to that device is paid in full......

if it is unlocked u can go for any service,blackberry supports both cdma n gsm.for unlocking contact blackberry service station which is in pune

AT&T and Sprint are not compatible services.
AT&T is a GSM Network
Sprint is a CDMA network
The phones are not interchangable

You will have to get a cdma phone for sprint

8830 is a cdma/gsm phone dr retardo