That's really anal to dig something up that's very old¯\_(ツ)_/¯
If you have A9LH yes, if not you would need to downgrade, which can only currently be done by either Hardmod or using DSiWareHax and an already-hacked system.
Also @zoogie you need to update OP, Freakyhax and Ninjhax was updated to work on 11.1 now.