8210 keep switching off, need help!

hi, i have a 8210 problem that alwasy switching off by itself. pls anyone who know how to solve this problem give me a guide to get rid of it.

Thanx.

is it possible that your battery is dead?or you have a contact-problem with the battery connector!!!!

i already change the battery, if that mean i need to change the battery contact point or is it any others way, maybe cleaning it with something? pls advice...

how long does your phone stay on until it switch off??i´ve read, that this could be also a bad contact on some IC´s!in this case you must reheat it (look around in this forum for more info)
i´ve never tried this myself!!

hope this help u more!

i'm not sure how long my phone stay on until it switch off but sometime it also off during incoming n outgoing call. i better try to look for more info, thanks 4 the advice.