I am on 4.2E and cannot install hackmii this is the log
HackMii v0.6 installer starting up
PVR = 00087200
running under IOS 36 rev 0xd17
48 titles are installed
Found IOS 254: revision: 0x104.
Found IOS 250: revision: 0xff00.
Found IOS 249: revision: 0xff00.
Found IOS 223: revision: 0xff00...