Question about Sony Ericsson K850i Mobile Phone

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On my screen it says insert sim,or view demo of the phone this phone first,press demo.my sim card is working but nothing happening on phone.

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Is this a new phone? If so check that you've inserted the SIM correctly and it's not SIMlocked to another network

If it's worked before remove the SIM and GENTLY clean the contacts on the phone and the SIM with a pencil eraser.

Posted on Jun 30, 2009

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To avoid this kind of problem from recurring;

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Make sure you avoid hitting the phone on objects and also avoid dropping the phone because this can make the Sim card shift out of place

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