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Juneberry
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SIM card compatibilty

Currently using a Treo600.  SIM card labeled as following:

 

Cingular

89310

170306199385347

62056   32K   GT

 

Will this card work in a Centro? Don't want to mess with having to get a new card activated by AT&T.

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SIM card compatibilty

This SIM will not work. You will need to get a new 3G SIM card from AT&T. If AT&T gave you this phone I would put it back on this they gave you a phone they new needed a newer SIM card. If you got this from a friend or eBay I would see what AT&T is willing to do for you.

 

If you tell them Palm told you to upgrade to a newer card due to phone issues they may give you the new card for free. It is up to them. Lastly, all newer devices require 3G you may just want to go ahead and get the newer SIM card regardless.

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Juneberry
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SIM card compatibilty

It turns out that you happen to be wrong in this case. The SIM card works in the Centro, allowing me both voice and data connections, just as it did in the Treo 600 it came out of.  It may not work for some advanced SIM services, but I never had them in the Treo, don't want them and don't need them. Sometimes seven year old technology works just fine.

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SIM card compatibilty

Glad the SIM card is working for you. You may still need to upgrade in the future due to the SIM card may not connect correctly with the Palm device. In our experience with older SIM cards in most cases they needed to be replaced due to dropped calls and other network related problems.

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