edit: i just noticed that the initial question was about a newer ROM update and bluetooth, but ill leave my initial reply here, cuz i often look for solution in old posts, so if this can help anybody :
NFSFAN 6.5 rom V11 and bluetooth
i dunno, but my bluetooth stuff somehow works with the 6.1 update, if you cant find any working solution within an hour, id suggest using a "well tried and tested" ROM version, like the 6.1
i stopped picking the "latest and greatest" in cars, devices, apps, or O.S. for the last two years, and been living a whole lot happier since.
about my 6.1 bell mobility ROM and bluetooth :
i like to tweak my weapons alot, my htc touch has a 6.1 ROM update, and i use bluetooth everyday, and it KINDA works well, enough for me anyway...
listening to mp3 and flv everyday on the transit,
then switching at work on the audio dongle adaptor on the pc,
using an pair of sonorix bsh-100 ( foldable stereo headset + optional plug-in mike)
to me the thruth is that bluetooth is a ****ty technology, i love it, and it's well taught,
but the developpers quickly code ****ty interfaces to it.
my settings all work from htc touch to dongle, but i often have to connect the touch to the headset like up to 3 times, where it tells me its connected, but isnt, when i hear the beep, it means it actually IS.
same at work, connect sometimes once, twice, even four, it eventually connects.
it's isnt button wear off or bad contact, its just the code is ****.
i rented a SUV that had bluetooth, tried connecting my phone, worked first time, a week later we rented the same SUV model, and for the whole trip i wasnt able to connect at all... back at the rental we tested the SUV with the clerck htc touch ( nice coincidence ) it worked right away.
i want to add here that whenever i try to connect through bluetooth, it usually works the first time.
my point is, bluetooth creators did a fine innovative job, but werent supported by developpers.
test your bluetooth phone alot with friends owning bluetooth accessories, youll detect behaviors after a while, and will learn to know its "demons" !
a bluetooth everyday user