For your information. Alot of thing not compatible with my n8. But since i'm using belle 111.030.0609. What harm can it do since it's for my firmware, and not for my phone.
Worst to worst hard reset will solved all the messed up and everything back to normal.
Dude, it's not about my phone or about your phone. It's about understanding the phone itself.
Compatibality issue was there with symbian since way back when.