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Your Sony Ericsson K800i has been locked to some specific network. That is why it displays such message. You can unlock your Sony Ericsson k800i safer and easier using unlock code. You can get the unlock code for a Sony Ericsson K800i from www.theunlockspot.com at affordable cost with easy unlocking guide. Good luck mate.
You can unlock your SONY ERICSSON K800i from www.Wickedunlock.com . This is the safe and reliable online site to purchase accurate unlock codes at affordable cost. The unlocking process is very simple here. You will get easy step by step instructions on unlocking process from here. Here is the unlocking steps for Sony ericsson K800i, 1 - Switch ON your Sony Ericsson K800i without any SIM Card,
2 - Press the left arrow key/button once,
3 - Press the button * twice,
4 - Press the left arrow key/button once,
5 - The message "Personalize with MNC2" will appear, (or you will have
displayed an unlock menu, select the lock you want to unlock)
6 - Enter the Unlock Code.
At Instant-Unlock we specialise in K800i unlock and in particular in K800i unlock codes which means you can unlock your phone with the minimum of fuss. We concentrate on only the most popular handsets so that we can offer a great service for Sony Ericsson unlock. Networks lock their phones to protect their revenues, they subsidise the handsets on their contracts and as such they want to maximise the return they get from the contract you take out with them. In an ideal world the network would give you your K800i unlock code on completion of your contract but quite often they make you pay to get your Sony Ericsson phone unlocked.
How to unlock K800i phones The process for unlocking your Sony Ericsson phone could not be simpler. Simply add the K800i unlock to your shopping cart an on the next screen you will be asked for your imei number and phone model. Once we have this information we can generate your K800i unlock code for you. We also provide Sony Ericsson unlocking instructions on our website so that once you have your K800i unlock code you can instantly enter it into your phone
K800i unlocked Once you have used our Sony Ericsson unlock service you will then be able to use your phone on any network. Please leave us some feedback on our service so that future K800i unlock customers know what to expect. If you have any questions before order please contact us, we will be happy to help with your K800i unlock enquiries.
Enjoy using your Sony Ericsson unlocked phone.
The best way to diagnose this problem is to simply try another memory-card. If your K800i still fails to recognize the card then the obvious problem is your memory-stick port. However, if the device does read the other memory-stick then just reformat your original card and try it again. Reformatting may or may not fix your original card. After following all the other guidelines and the handset will identify other cards, except for your original (after you reformatted it) then you are left with an only option to buy another memory-card.
The PUK code is availlable from your network service provider. This number was on the plastic card that your SIM card was attached to. If you don't have it, only your Network Service Provider can supply it to you.