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  1. Thread AuthorThread Author   #1  
    Darkmwar's Avatar
    iMore Nanite

    2 Posts

    Default GPP question, Can I still use my old carrier?

    Hi forum,

    I just purchased a GPP for my Sprint iPhone 4s. This is for two reasons, I am about to travel out of country for a while and when I come back I want to use back Sprint and later switch to T-Mobile.

    So my question is:

    1) If i set my phone to use the GPP right now, can I take it out and put back the Sprint sim card for sprint service until I actually go on the trip? (I want to prepare it before I head out to the trip since I might not have internet there in the beginning)

    2) After I come back from the trip, can I switch out the GPP and use Sprint again? (kind of the same question as #1)

    3) If I use GPP for a network in China, can I still use the same GPP for T-Mobile later?

    4) Would Sprint still work if I put a Sprint sim over the GPP Chip/Tray?

    Any Help is appreciated!
  2. #2  
    pkcable's Avatar
    Q&A Jedi

    3,367 Posts
    Global Posts
    38,451 Global Posts

    Default Re: GPP question, Can I still use my old carrier?

    I did not even know what a GPP was until I googled it! It appears to be some kind of unlocking SIM card for the iphone for use in China, or at least that's as far as I can determine via google. I really don't know enough about it to answer your questions. Hopefully someone else more experienced can. Here's the results of my google search....


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