Did you tried resetting the phone to factory before trying a manual update to MM?
I haven't tried things out yet since I'm on cap already after MM was released, so can't download it for now.
@L.A, @Elaine, @Shadow
Guys, is it possible to do Local Update while on Safe Mode? Would love to try it, but don't have any local update files and won't be able to download one due to my data capped already.