help with sony ericsson k770i?

i have cleaned the battery contacts.
when you try switch the phone on the red light flashes and does not turn on and when you plug in charger the same thing happens and does not charge.
do you think this is a software problem?do you think it needs upgrading?
pl help thanks

jayne wright
July 2009

Is this some kind of battery or charging problem?
Try taking the battery out and wiping the gold contacts on it, otherwise try to explain the problem clearer.

Adam
July 2009