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K850i insert USIM or view demp

I live in texas and bought this online. Now it is saying insert USIM or view demo. I know my card is good. Any suggestions?

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If the sim fits its the right type of card, if it needed a certain carrier (ie Telstra) SIM Card, your putting the sim in it would have locked it not just not read it. Either you put the sim in the wrong way, make sure the metal on the sim matched up with the metal grates on the phone OR more than likely the phone is faulty and needs to be fixed.

Posted on Jul 27, 2009

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I want to use this phone but when ever i tried this message appears on the screen. Insert USIM, or to view the demo of this phone first, press demo


Hi,from whom did you purchased your mobile? did you got this for contract from any provider? and did you tried to insert other provider's sim in your contracted mobile? if so your mobile is locked to your current provider and to get rid of this problem you have to unlock your mobile..try getting unlock codes for your mobile from your current provider or from online providers..once i got unlock code from my mobile mobileunlocksolutions and unlocked my mobile..you can too try getting codes for your mobile and get it unlocked safely..and if it is not a contracted mobile,then contact near by service center to know the problem in your mobile for the msg "insert USIM"...

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I have k850i last night i make call from it after


Hi! This is a hardware problem, the SIM socket inside the phone may be broken, so you need to get it to a service to be checked/repaired.

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On my phone it is saying insert cim or view demo my card is in and nothink is happining


your sim might be damaged or if it is a new one sim card might not be activated by your service provider. try to insert a sim card which is working on other phones. Then you can identify the reason.

Jul 28, 2009 | Sony Ericsson K850i Mobile Phone

1 Answer

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.


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.

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How to check the phones performance


The secret way is to turn your phone off, take out your sim card and turn it on again, u'll get a little msg saying: "Please insert the sim card or view the demo" then all you do is press:
.*<<*<*
and a hidden menu pops up, then you go to the service Tests and test everything there :)
And your done

Mar 30, 2009 | Sony Ericsson K850i Mobile Phone

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My sim card wont work in the Sony Ericsson K850i


are you trying to put a 2g simcard into a 3g phone? this seems like your troubles here... you may need to obtain a 3g simcard that is compatible and transfer your mobile number to the new sim

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