1. backwood's Avatar
    Hello, I currently live in Ireland and that is were I purchased my BB Curve9300. I will be moving to America soon and my question is, what steps need to be taken so the BB will work over there and not on the 02 network??

    Thank you for help.
    02-10-12 06:53 AM
  2. cooljatt18's Avatar
    your phone needs to be unlocked, if it locked to your carrier. that's the main thing, if its unlocked just pop in sim of at&t or tmobile when in united states. you might not be able to use 3G in america on one of the operators.
    02-10-12 06:57 AM
  3. backwood's Avatar
    Cheers mate foe replying.
    First where do i go to unlock the phone and do i need the code for later use??
    2nd can i still BBM back over to Ireland and if so will there be extra cost??
    Finally, with the charger that plugs in the outlet here can it be replaced with US charger??

    Thank you so much.
    02-11-12 06:04 AM
  4. NFLPLAYBOOK's Avatar
    Edit: See below.
    Last edited by NFLPLAYBOOK; 02-12-12 at 02:50 AM.
    02-11-12 08:48 AM
  5. cooljatt18's Avatar
    once unlocked the phone is unlocked for life, contact local mobile shops for more info on that or check online.
    you will need blackberry data plan when in America to use BBM, which will cost extra.
    you can use American charger or if possible use your buddies charger if you have any in America.
    02-11-12 09:12 AM
  6. BBPandy's Avatar
    You won't get 3G on any of the networks in North America. If you are going to be staying over here I would suggest selling your phone and getting a new one here.
    I disagree.

    Just unlock your phone & then when in the USA, use either AT&T or T-Mobile. I would suggest AT&T becuase you will be able to use both of their 3G frequency Bands vs T-Mobile USA where you will only be able to use one of their frequency bands.

    Your Curve 9300 operates at frequencies of GSM 850 / 900 / 1800 / 1900 / HSDPA 1900 / 2100 Mhz.

    Frequencies used on the AT&T Network
    Frequency Protocol Class
    850 MHz GSM/GPRS/EDGE 2G
    1900 MHz GSM/GPRS/EDGE 2G
    850 MHz UMTS/HSPA 3G
    1900 MHz UMTS/HSPA 3G

    700 MHz LTE 4G

    Frequencies used on the T-Mobile US Network
    Frequency Protocol Class
    850 MHz GSM/GPRS/EDGE 2G
    1900 MHz GSM/GPRS/EDGE 2G
    1700 MHz UMTS/HSPA 3G
    1900 MHz UMTS/HSPA 3G


    .......Your Phone won't work at all on Verison
    02-11-12 04:27 PM
  7. NFLPLAYBOOK's Avatar
    I disagree.

    Just unlock your phone & then when in the USA, use either AT&T or T-Mobile. I would suggest AT&T becuase you will be able to use both of their 3G frequency Bands vs T-Mobile USA where you will only be able to use one of their frequency bands.

    Your Curve 9300 operates at frequencies of GSM 850 / 900 / 1800 / 1900 / HSDPA 1900 / 2100 Mhz.

    Frequencies used on the AT&T Network
    Frequency Protocol Class
    850 MHz GSM/GPRS/EDGE 2G
    1900 MHz GSM/GPRS/EDGE 2G
    850 MHz UMTS/HSPA 3G
    1900 MHz UMTS/HSPA 3G

    700 MHz LTE 4G

    Frequencies used on the T-Mobile US Network
    Frequency Protocol Class
    850 MHz GSM/GPRS/EDGE 2G
    1900 MHz GSM/GPRS/EDGE 2G
    1700 MHz UMTS/HSPA 3G
    1900 MHz UMTS/HSPA 3G


    .......Your Phone won't work at all on Verison
    Don't know where you got your 3G frequencies from. This link shows them as 900-1800.
    What band frequency does O2 use? - Yahoo! UK & Ireland Answers

    Of course they can use the GSM bands but they are slow.
    02-11-12 07:03 PM
  8. BBPandy's Avatar
    Don't know where you got your 3G frequencies from. This link shows them as 900-1800.
    What band frequency does O2 use? - Yahoo! UK & Ireland Answers

    Of course they can use the GSM bands but they are slow.
    Quick Google/wikipedia search to get frequency bands.

    I've used Berry's in Various countries in atleast 3 continents & that's always worked for me. I just find what carriers are in those countries & then google "carrier name frequency bands" and make sure their numbers match what RIM says the phone can use.
    02-12-12 12:34 AM
  9. NFLPLAYBOOK's Avatar
    Quick Google/wikipedia search to get frequency bands.

    I've used Berry's in Various countries in atleast 3 continents & that's always worked for me. I just find what carriers are in those countries & then google "carrier name frequency bands" and make sure their numbers match what RIM says the phone can use.
    Ok so they use the 2100 UMTS Spectrum for 3G. The phone could be either a 900/1700/2100 or 850/1900/2100 version phone. So he will be able to get either ATT or TMo in North America. The other link was wrong about the 3G Spectrum.

    So yes just unlock it and put in a sim from which ever company has the same remaining frequencies for your phone. Yes there are 2 version of that phone.
    Last edited by NFLPLAYBOOK; 02-12-12 at 02:57 AM.
    02-12-12 02:49 AM
  10. backwood's Avatar
    thanks to all for replying, it means a lot!! i will get the phone unlocked and see if i can get the code aswell.
    02-14-12 12:04 PM
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