I have a Wasabi Zero and it's latest firmware. My system menu is 3.4U. I have used The Homebrew Channel with the homebrew Guitarfun, and used to have Guitarsonfire, WiiSCU, and the Wii shop and IOS61 installer from tona and WB3000 ( http://wiibrew.org/wiki/Wii_Shop_and_IOS61_installer ). Is it safe to update through Nintendo? I am willing to lose homebrew, but not the chip. Thanks in advance!