Hmmm. I've been meaning to get around to trying this on my 770, it works fine on my N810.

Check the kernel versions against your 770 and whatever the latest for the N810 is. There's a possibility that module isn't compatible with your kernel version. (I should mention it's seriously been about 2 years since my N810 has seen any kind of upgrade; my biggest challenge with this was dusting the thing off.)