How to Clear the Phone Life Timer

[yoyobluetooth]

Hi
Please Let me knwn how to clear the Mobile Call timers. I have a n70 when i keyin *#92708689# it displays the call timer i want to clear that Timer Is there is anyway to do the same. I have Cleared the Log to Still iam unable to clear the Life timer.

Cheers
YOYOBLUETOOTH

 

[Viking]

hard flash the phone fromur local phone dealer, donot update flash from nokia update service.