I am also having the same issue. My s60 crashes whenever I unplug it from charger and play something processing hungry or sometime just after I unplug. In the meanwhile the battery is fully charged. Seems to me like battery connection is loose or something. Now I cannot use it. Any other solution please.
I tried to flash with a roam (link was given on page 9). Its black after that. Any suggestion or if I used the wrong scatter, please.
Looking forward and thanks in anticipation.