[kristian C]

I have the 8gb sandisk minisd but it won't be recognized higher than 3.6 gb on my cell phone, no mater what I do, I've tried everything. Someone told me, and website said to as well, to upgrade my blackberry's operating system to v4.3.1 so that my phone can recognize beyond 4 gb. how do i do that? do i take it into the shop or just link it to my computer and to it through a website? this seems like the only thing left to try so please post anything that can help, it's becoming very tedious and annoying... thanks.