message? my K800i keeps turning itself off in the past couple of days. it has plenty of battery, and never done it before and when i turn it back on it pops up with invalid SIM card even though there is a OK sim card in it.
then it goes away after a couple times of turning it on then off again.
please help thanks
If your Sony Ericsson K800i displays invalid sim card message on screen,it is locked to network.You need to unlock it.So that you can use other network sim card in it.Without unlocking you cannot use other network sim card in it.Visit the site Theunlockspot.com get unlock code for Sony Ericsson K800I phone and unlock it easily.Then use any GSM network sim card in it.