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quick question about the sim card...

Discussion in 'Android Devices' started by dee_gee, Apr 11, 2011.

  1. dee_gee

    dee_gee Newbie
    Thread Starter

    I'm about to upgrade my phone to 2.1 but I've never done this before. Do I leave my SIM card in the phone or take it out first? The t-mobile site doesn't give this info..??

    If I do it wrong will it affect the sim card or my data?

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