Wait, so is the method in the OP confirmed to work if the requirements are in order, or no? My friend fits the requirements and would like to get homebrew, but I'd like to have full confirmation it'll work before I tell him. I'd rather not take the chance of it not working and him being permanently stuck with the nag.
As long as your friend hasn't triggered the nag already, he should be fine. What firmware version is he on though? Because if it's 10.2, browserhax won't work no matter what.