patched mgcamd

has anyone found a patched mgcamd
to open bulsat on 39e that works on
a dm500hd,i cant get it to work with
my box,

i have used minicats mgcamd keys
the mgcamd i use was a 135a version
said to be working on the dm800 but i cant
get it to open bulsat and wondered if there was
any difference for it to work on one 800 and not
on the 500, but to be fair it could be at my end,