I know but my friend has been console banned before and he told me that he un-banned his console by doing so, so i wanted to see other peoples personal views on what they've done in a similar if not same situation about being console banned, seeing as my friend un-banned himself with a new KV which seems simple enough.
Unbanning with a KV could only ever be done with a Jtag/RGH Xbox and not a stock Xbox like yours.
KVs cost between 50 and 100 dollars for an unbanned one.
If you were to RGH your slim and swap the banned KV with an unbanned KV, you would be immediately banned as soon as you tried to connect to Live.
Swapping KVs to unban could be done in the past, but not anymore. So that's why your friend may have had success with it before. But now microsoft has cracked down and there are only a handful of people who know how to get a jtag or rgh online and past the security checks. No one will publicly disclose that information because then microsoft will know how to keep them offline too.
Plus, you'd have to invest money in having someone RGH it, or in the materials to RGH it yourself. And for that amount of money you can almost buy an unbanned phat.