I also seem to be having the same problem. Mine was a Japanese set which was modified to English (from 3.2J to 3.2U). The error I got was:
HackMii v0.6 installer starting up
PVR = 00087200
running under IOS 36 rev 0x412
92 titles are installed
Found IOS 254: revision: 0x7a6a*
Found IOS 56: revision: 0x141a*
Found IOS 55: revision: 0x1219*
Found IOS 53: revision: 0x1011*
Found IOS 38: revision: 0xe19*
Found IOS 37: revision: 0x816*
Found IOS 249: revision: 0x7*
Found IOS 36: revision: 0x412*
Found IOS 35: revision: 0x410*
Found IOS 34: revision: 0x40f*
Found IOS 33: revision: 0x410*
Found IOS 31: revision: 0x410*
Found IOS 30: revision: 0x410*
Found IOS 28: revision: 0x508*
Found IOS 22: revision: 0x7*
Found IOS 20: revision: 0x7*
Found IOS 17: revision: 0x7*
Found IOS 15: revision: 0x7*
Found IOS 14: revision: 0x7*
Found IOS 13: revision: 0x7*
Found IOS 12: revision: 0x7*
Found IOS 11: revision: 0x7*
Found IOS 10: revision: 0x206.
Found IOS 21: revision: 0x7*
Found IOS 2: revision: 0x121*
Found IOS 9: revision: 0x7*
Found IOS 4: revision: 0x3.
IOS versions: Installer: 10, HBC: 0, DVDX: 0
launching IOS for the installer...starting preparationsNinty forgot to write spare data for page 191
Ninty forgot to write spare data for page 447
parsing last generation bootmap
found valid boot2 blockmap at block 1 (pos 0x627c0), submap 0, generation 2
found valid boot2 blockmap at block 5 (pos 0xe67c0), submap 0, generation 3
parse_blocks: found 2 valid blockmaps
found 2 valid blockmaps
using generation 3
boot2 blocks: 00 01 02 03 04 05 06
boot2bin @5,0 (blocks=0,1 - bootmii=0)
bootmii@-1,-1
boot2 blocks: 06 05 04 03 02 01 00
boot2bin @5,1 (blocks=6,5 - bootmii=0)
boot2 block layout: 2 2 1 1 1 0 0
Assembling boot2 in RAM
copyright size = 34
copyright text = 'Copyright 2008,2009 Team Twiizers.'
tmd ends at 0x80295dac, data starts at 0x80295de0
bootmii version = '1.1'
Ok for boot2 install
preparations done![33;1mThe test results are in:
[37;1m Using IOS versions: Installer: 10, HBC: 0, DVDX: 0
The Homebrew Channel: [31;1mCan NOT be installed[37;1m
There is no usable IOS for the channel
DVDX: [31;1mCan NOT be installed[37;1m
There is no usable IOS for the channel
BootMii: [32;1mCan be installed[37;1m
Can you advise me what is the best course of action? If its the same as the above step, please advise where to get the IOS files (not sure where is NUS) and also the guide for DOP-IOS.
Thank you.