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Bring an HTC P3450 unlocked phone to overseas. doesnt work

I brought my phone overseas. It found the network (optus) but doesnt work. 1st time when i inserted the SIM, it worked, but after that, 1 hour later it shown the operation failed. Can u guys help me? upgrade ROM? many thanks

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  • truonganhltd Jul 27, 2009

    Hi 270rexton,

    Yes. My Optus is default 3G network.

    what happen if i change my 3G SIM to 2G Optus SIM, i dont need 3G network anyway. How about 3, virgin or telstra, can i use this phone for those networks?

    Moreover, sometimes i try to make a call with this HTC phone and it works sometimes. Aftert that, the operation failed again. WT...

    Thanks for helping

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  • Master
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Is Optus an 3G network? Some USIM cards doesn't work with non 3G devices.

Posted on Jul 25, 2009

  • 270rexton
    270rexton Jul 27, 2009

    This phone HTC 3450 (also known as Elf or Elfin(128/256RAM/ROM) is non 3G device that's why probably you getting call failure. If you can change your SIM to 2G do it and recommend you an data plan as well because this little device is very good for emails,rss etc.

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