iv had an issue after foolishly updating to systemmenu 4.0 . i could not install any cioses or other wads, wad installer constantly ret errors 1035, 1017 and other errors. iv tryed feverishly to find solutions, following tons downgrade tutorials, non seem to have had helped, until Wiigator released an awesome app (cBoot2) that works off of mini, the bootmii environment, wich is non reliant on nintendos ios system(s). this app allows you to patch an ios kernel for fake signing , then boots it, allowing you to mount the nand and install packages free of 4.0s ios restrictions and fixes for the fakesign bug. Who this tutorials for: non LU6x wii owners people who upgraded to systemmenu 4 and find them selves unable to install Cioses and other types of wads (-ret 1035, 1017, 1022 errors etc) with no apparent solution in sight people who are able to install bootmii to boot2, with the v16 update, cboot2 *MAY* or *MAY NOT* work with bootmii installed as an IOS, proceed w/ caution, the backup WONT help you if mess up with bootmii installed as a ios This method *SHOULD* work for most people having the same/similar issues as me , there may also be a few things missing from the tutorial , feel free to help me fill in the gaps requirements: a non SDHC sd card = or < 2GBs (mine was SDHC, it worked fine, iv herd others having issues with SDHC cards and the cboot2installer) a wii thats serial# is < LU6x a wii that can install bootmii to boot2. you can try it as an ios, i would not recommend it due to the inability recover in the event of a brick. before you begin, its recommended that you at least try the following tutorial to fix the 1035 error before you try mine: http://gbatemp.net/index.php?showtopic=146735 1. download the required package from http://sadnetworks.ath.cx:82/iosdowngradev3.rar Data management>Channels > SD Card, youll be prompted to run boot.dol, select yes 4. Hackmii installer will start, install the homebrew channel and install bootmii to BOOT2, NOT AS AN IOS, also install the bootmii files to the sdcard. exit the installer after 5. reboot your wii, bootmii should load, when it loads, open the gear looking icon, and MAKE A BACKUP OF YOUR NAND!! dont even bother going any further without doing this, i cant stress it enough, once backup is finished power off the wii, copy nand.bin someplace safe and format your sdcard after 6. copy the contents of sdroot2 to the root of your sdcard. boot your wii 7. run cBoot2Installer via HBC, once its finished reboot your wii 8. turn on your wii, it will boot strait to a screen that will display odd asci txt, then it will boot to wadmanager 1.4 9. uninstall ciosv9.wad, IOS30-64-v1040.wad and IOS36-64-v1042.wad (YES, UNINSTALL these wads), DO NOT reboot the wii afterward 10. INSTALL ciosv9.wad, IOS30-64-v1040.wad and IOS36-64-v1042.wad, power off the wii and eject the sdcard 11. power on the wii with the sdcard ejected , once in systmemenu, inert the sdcard and run the HBC. 12. run cios60 installer, skip ios61, install and patch ios60 and skip the shop channel. 13. run the ios downgrader , downgrade all your other ioses 14. your finished, if you want, indulge your self by running the ciosv_10 installer, and watch it complete error free Thanks can be direct to wiigator for creating cboot2. bushing, marcan, segher, svpe and tmbinc for the creation of bootmii and mini and comex for bannerbomber, as well as wankie for his cioses as well as the wad installers.. and all the other talented coders out there making the wii something worth owning.