According to my point of view,
the easiest thing is to use a native function of the console,
without bothering to install and uninstall new cfw to restore the functions that sony removed each time with its fix
When this happens,
users cfw,
always in a hurry to get back the lost functionality,
and very often the various operations needed for new cfw,
can to lead problems and malfunctions,
if I remember correctly in the past and happened more than once.
About you,
I can only confirm that you are a man, or a guy (this I do not know)
, very experienced with ps3, and I do not doubt that it is easy for you everything,
but considering that it was understood that nux is inexperienced,
and which has a ps3 dex,
I'm sure of having advised the easiest and sure solution for him which has a dex Ps3,
He managed to do everything and he seemed satisfied,
for me this is not an activity for do money
if I lose my time,
is propagete to know that many people want to keep hidden
even if what I have suggested is not anything new.
