I can't update firmware on my Steelseries Kana v2. My current firmware version is 276. Whenever I go to update it gets an error at 11% saying "cannot open bootloader device". This is on my 8.1 system.

I've got the update to progress on an XP and 7 system, but the firmware still shows version 276.

I was wondering if anyone here owns a Kana v2 and could please tell me what their latest firmware version is?

I tried asking Steelseries support, but they just paste an automatic response and tell me to RMA at my own shipping cost.