The Sony Ericsson K770i, was launched by 3 (in the UK) in 2008 in association with girl band Sugababes.It is a mid-range mobile phone, and successor to the (then) still manufactured K750. As of mid-2009, it has not been directly succeeded in the Sony Ericsson model range.
Dear brother i have a k770 mobile phone. 1st time it was Ringer problem. I solved it but when i on the phone i was saw "INSERT SIM CARD". So many time i m trying to solved it it's not possible 4 me. so if anyone have any solution pls help me. It's urgent 4 me.
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