Question about Sony Ericsson K850i Mobile Phone

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K850i. everytime i turn it on it keeps asking me to insert sim (which is already in) or see there something i can download to fix this?

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Take sim out and reinsert it if that dont work you will need new phone thats all u can do

Posted on Jul 18, 2009


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The insert sim or demo keeps on appearing in my screen but my sim and other sim works in my other fone.

that probably happens because the phone you have it locked to a particular network, and the sim card you have is not for that network. you can find free sites online which enable you to unlock your phone. if you still need help, message me, and i'll see if i can find you one

Sep 19, 2011 | Sony Ericsson K850i Mobile Phone

1 Answer

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.

Dec 13, 2009 | Sony Ericsson K850i Mobile Phone

1 Answer

Ciphering not provided operator insecure transmission'' How can i fix this please. I have sony erricson K850i Thanks

Ciphering is mainly caused due to old sim cards,remove your sim and reinsert it.If the problem still persists,go to the customer care center of the operator and ask for new sim with the same number ,you would probably get this for free .Insert the new sim and see to it that the problem is gone now

Oct 09, 2009 | Sony Ericsson K850i Mobile Phone

1 Answer

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 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.

Jun 30, 2009 | Sony Ericsson K850i Mobile Phone

1 Answer

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

1 Answer

K850i insert USIM or view demp

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.

Jan 27, 2009 | Cell Phones

1 Answer

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

Dec 03, 2008 | Sony Ericsson K850i Mobile Phone

1 Answer

I've got a new sony ericsson w580i and i've put the sim card in but it hasn't come up and everytime i go to turn the phone on it just says either insert sim or demo and i don't know how to get the phones...

try using a fingernail or something thin to lift it up, and slide it out.
make sure the contacts on the phone and on the sim card itself are fine and not rusting or such.
Then, slide it back into the compartment, make sure it is done on the right side, and held tightly in the SIM card cabin.
Then, turn on the phone.
If that does not work, perhaps you have a faulty phone or SIM card, which require changing.

Oct 28, 2008 | Sony Ericsson Cell Phones

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