Hi i have tried 2 PSU on it, but it is still dead. After it went dead, i noticed there was a little smell from it, like burned plastic.
Chances are either one of it's internal components blew up or your battery died.
Have you tried removing the battery and plugging the PSU in without it?
Mine wouldn't turn on (or it would turn off after much less than 5 seconds) whenever I tried to with the battery still in place.