Question about Sony Ericsson K800i Cellular Phone

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Sim lock Hi i bought a k800i off the street, nw we i put my sim card in it tells me sim lock? wat should i do? is there a code to unlock it or a code to restart the fone?

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Re: Sim lock

U have to get it unlocked from UK Service provider

Posted on Nov 14, 2007

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Rejected sim card

Hi if your sony ericsson k800i mobile is rejecting your sim card whether it is diaplying messages like sim invalid ,sim lock and so on then it mean your phone is locked to some other network provider due to this you can't use other network sim in it until you unlock it .You can easily unlock your phone using sites like they are rendering unlock code for all mobile models at reliable cost .You first check that whether the code is available for your country and network provider .If yes then pay for it and unlock your phone then freely use any GSM sim in it .

May 20, 2014 | Sony Ericsson K800i Cellular Phone

3 Answers

'sim card not valid' when i do insert my sim card.what might be the problem ?

Your phone may be locked to its Network, that's why it shows "sim card not valid". In order to use other Networks, you need to unlock your phone. You can unlock your Nokia N70 using code.You can either get the unlock code from your service provider or from reliable online site. is where i unlocked my phone, they offered codes at affordable price, with simple unlocking instructions.

Aug 23, 2012 | Nokia N70 Cellular Phone

1 Answer

How to reprogram my sony ericsson k800i


Obtain the unlock code for your K800i if the phone is locked. You can get the code from an unlocking service, or from the carrier that originally sold the phone.

Turn off the K800i and turn the phone over.

Remove the battery cover by sliding it toward the bottom of the phone. Lift the battery from the bottom and set the battery cover and battery aside.

Remove the old SIM card by sliding it out from under the metal clip. If you have an unlocked K800i, all you need to do is insert the SIM card from your new carrier. Otherwise, leave the SIM out and reinstall the battery and battery cover.

Turn the phone on and wait for it to boot up.

Press left on the navigation pad and press "*" twice, then press the left arrow again. The phone will display "Personalize with MNC2."

Type the unlock code and wait for the phone to reboot.

Turn the phone off and insert the new SIM card.

Jul 22, 2012 | Sony Ericsson K800i Cellular Phone

1 Answer

Hi there,i had purchased htc thunder bolt a month ago from Miami US and since it was a lock piece i also bought unlock code online.Now the biggest challenge i am facing is when i put my local active sim...

Hi, i think your step not correct when entering HTC Thunderbolt unlock code. You must use your old sim card to unlock your phone, don't use new sim card before that phones completely unlocked. That's why your sim card not recognized. If this method not working maybe you get wrong HTC unlock code, since it's little rare for me. Usually if you bought unlock code reputable online store, they usually send unlock code with complete instruction how to insert that unlock code in your phones. The bottom line try my method and if not working get new code. Thanks.

NB: don't enter your wrong code to many times in your phones, it will caused your HTC to hard locked state and you can't use that phone even you put your old sim card.

Jun 03, 2011 | HTC Thunderbolt (8 GB) Smartphone

1 Answer

I have a nokia 1616 by mistake i have entered the wrong pin, nw the phone is askin the PUK code, i dnt kne wat is PUK. n what is PUK code of my cell. Please Help my mobile no-9437299657

The SIM card needs the PUK code to unlock.
PUK stands for Personal Unblocking Key. This is a unique eight digit code specific to your SIM card.
For further details on unlocking the SIM card, please click on this link :-

Oct 15, 2010 | Cell Phones

1 Answer

I have a nokia 2330 and when i put the sim card in its asking for the restriction code wat is it?

hi what the phone is telling you is that the sim card you are trying to use is from a network not supproted by the phone so you then have 2 options you can either get the phone unlocked at any phone shop so it can accept any sim card or you can find out what network the phone is locked to then use a sim card from that network.

let me know how you get on or if you need further assistance ok

Apr 19, 2010 | Nokia Classic 2330 Cell Phone

1 Answer

Need code for sim

I have a samsung sgh t629 now I have the code to unlock it. but the part where it says to put in a sim card from that is locked out of your phone...I did that now the sim card is saying I need to unlock it, it gives me three tries. Now the unlock code I received tells me to put in *2767*3855# which will reboot my phone but I cannot put it in if the sim is requiring a 4 digit code to even press anything. Now I need to know how to get pass the sim lock please help and e mail the results to me at thanks so much

Nov 10, 2008 | Samsung SGH-t629 Cellular Phone

7 Answers

Sony Ericson k800i Free unlocking code

have a k800i locked to vodaphone need to un lock it any ideas

Dec 22, 2007 | Sony Ericsson K800i Cellular Phone

14 Answers

Unlocking code

i wnt unlock code as i have forgot my code?

Dec 16, 2007 | Sony Ericsson K800i Cellular Phone

3 Answers

Cell fone from uk

The Cell-phone is SIM-locked to the Orange provider in the UK. (You can only use their SIM-cards in your phone) This is very common and you have to contact Orange in order to get the unlock-code and instructions in how to unlock your phone. The other option is to have a proffesional unlocker unlock your phone, only problem here is that the warranty might be void hereafter.

Sep 10, 2007 | Sony Ericsson K800i Cellular Phone

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