My phone was working perfectly...UNTIL I CHANGED MY MMC NAME.

Is it not ok to change MMC name?

All my settings points to MMC, Messaging, Camera, Video, etc. But when I changed the name, it's been acting weird lately that I may need to reset it.

Anyone had the same experience?

Could you please specify what you mean by "weird"?:)

That expression says nothing specific about symptoms your phone has..

cheers
RayGun