Originally Posted by snowskier79
I don't believe 4GB cards and up work yet on BB. Last I remember, microSDHC will be supported in OS 4.3 for all devices.
4GB microSDHC cards work very well with no issues.
It is the 6GB & 8GB that do not work without the OS4.3 (which is only available for the 8130 right now). I tried a 6gb myself in my 8830 and could NOT get it to work.
I actually had better luck putting the 6GB card into my LG Muziq (for now) where at least it can read all 1390 MP3s and play them. Even on the Muziq; though, its OS & media card utilities do not understand the format and think it has a 2gb card inserted. But the Media Player (Sprint Music Store) does successfully read and play all of the songs!
I'm using the Sandisk USB Micromate SDHC Card Reader & adaptor that came with the 6GB card to transfer music. Otherwise; my WinXP PC also had trouble reading/writing to the 6GB card.