2008-04-15 11:49 - edited 2008-04-15 11:50
2010-06-16 13:27 - edited 2010-06-16 13:28
First remove the battery and leave it out for at least 5-10 minutes before restarting. Also try restarting without the memory card and sim card.
Once you have your phone switched, then you can easily update the phone firmware using Nokia Ovi suite or Nokia Software updater.
If you are unable to switched your phone then I think the only way is to contact with your nearest Nokia care to fix the problem.
You can get some FAQ here: http://europe.nokia.com/support/download-software/
my nokia N97 shows "headset connect" all the time (there is no head set connected actually)
cant make calls as i cant hear anything .
when i plug in the head set , the phone restarts.
the power switch does not work .
will re installing software work, how to do it
pls help me on this
You can reinstall your phone's software through the Nokia Suite. Video tutorials are also available on the Nokia Suite page or you can check NokiaSupportVideos on Youtube.