Needed for this guide:
-Brains (sorry, no zombies allowed!)
-A bit of humore
Lately, your wii has been doing strange things. It isn't quite bricked, but you get blackscreens, core dumps, or maybe it's printing money. You want to know what is wrong and you know that you could use a system check (aka syscheck) to see what is the problem. You just don't know how to read a system check.
What a system check looks like
There are several programs which can make a system check, like dop-mii, syscheck and syscheckGX. We will only look at a system check made by syscheck. Anyway, let's see what a system check looks like!
System check by syscheck (copied from http://www.wiihacks.com/recommended-...tem-check.html, Ithian's syscheck):
...runs on IOS58 (rev 6175).
System Menu 4.1U (v449)
Found 178 titles.
Found 38 IOS on this console. 4 of them are stub.
IOS4 (rev 65280): Stub
IOS9 (rev 1034): No Patches
IOS10 (rev 768): Stub
IOS11 (rev 10): Trucha Bug, ES Identify, Flash Access, NAND Access
IOS12 (rev 269): No Patches
IOS13 (rev 273): No Patches
IOS14 (rev 520): No Patches
IOS15 (rev 523): No Patches
IOS16 (rev 512): Stub
IOS17 (rev 775): No Patches
IOS20 (rev 12): Trucha Bug, ES Identify, Flash Access, NAND Access
IOS21 (rev 782): ES Identify, NAND Access
IOS22 (rev 1037): No Patches
IOS28 (rev 1550): Trucha Bug, ES Identify, NAND Access
IOS30 (rev 1040): Trucha Bug, ES Identify, Flash Access, NAND Access
IOS31 (rev 3349): No Patches
IOS33 (rev 3091): Trucha Bug, ES Identify, NAND Access
IOS34 (rev 3348): No Patches
IOS35 (rev 3349): Trucha Bug, ES Identify, NAND Access
IOS36 (rev 3351): Trucha Bug, ES Identify, NAND Access
IOS37 (rev 3869): No Patches
IOS38 (rev 3867): Trucha Bug, ES Identify, NAND Access
IOS50 (rev 4889): Trucha Bug, NAND Access
IOS51 (rev 4864): Stub
IOS53 (rev 5406): Trucha Bug, NAND Access
IOS55 (rev 5406): Trucha Bug, NAND Access
IOS56 (rev 5661): Trucha Bug, NAND Access
IOS57 (rev 5661): No Patches
IOS58 (rev 6175): No Patches
IOS60 (rev 6174): Trucha Bug, NAND Access
IOS61 (rev 5405): No Patches
IOS70 (rev 6687): Trucha Bug, NAND Access
IOS202 (rev 4): Trucha Bug, ES Identify, NAND Access, USB 2.0
IOS222 (rev 4): Trucha Bug, ES Identify, NAND Access, USB 2.0
IOS223 (rev 4): Trucha Bug, ES Identify, NAND Access, USB 2.0
IOS249 (rev 20): Trucha Bug, NAND Access, USB 2.0
IOS250 (rev 20): Trucha Bug, ES Identify, NAND Access
IOS254 (rev 65281): BootMii
How to read it and what to look for
The homebrew channel IOS
When we take a look at the system check, we see that the first thing it reports is which IOS is used to run the syscheck, which is IOS58 in this case. This is important information, because this is the same IOS the homebrew channel will use. So if you are having problems with homebrew apps, it is probably caused by this IOS.
The next thing to look for are the cIOS. The cIOS all have a number higher than 200. In this case, cIOS202, cIOS222, cIOS223, cIOS249, cIOS250 and cIOS254 are installed. Want you mainly want to look for, is that none of the IOS are a stub. Basically, a stub is a usless IOS which does nothing, installed by Nintendo. If they are stubbed, you will need to use a softmod guide to install the proper cIOS.
You should also make sure you have the recommended setup. The recommended setup here at wiihacks is (note, the system check will not report which base IOS the cIOS uses, only the version/rev):
Spoiler[cIOS202] Choice [v5/5.1] with [ios57](Faster USB Loading,Emulators,MplayerCE,WiiExplorer)
[cIOS202] Choice [v5/5.1] with [ios60](Better for SMB Shares)
[cIOS222] Recommended [v4] with [ios38] (Alternate to use instead of Wanin cIOS)
[cIOS223] Recommended [v4] with [ios37&38](Monster Hunter Trii,Music Games)
[cIOS224] Choice [v5 or 5.1] with [ios57 or](Pick what you want)
[cIOS249] Recommended [v17] Default Base [ios38] Wiihacks.com seal of approval
[cIOS249] Choice [v19&20] with [ios57](Better/Faster USB Loading)
[cIOS249] Choice [v19&20] with [ios37](Slow/Alternate to using ios223 for MHTri,Music Games,WM wont work)
[cIOS249] Recomended [v20] with [ios56](Works for all games except Grease,Def Jam Rapstar,COD:Black Ops)
[cIOS250] Choice [v17&19&20] Whatever suits you.
Example:You can have 249 as the default loads almost all games and 250 for faster usb loading if games work with it.
Copied from http://www.wiihacks.com/other-faq-gu...cios-wads.html
Off course, you are free to decide your own setup, but this might be the cause of your problems.
The last thing to look for is a cIOSCORP/DARKCORP installation. It can be recognized by checking the IOS with numbers lower than 200. If many of them have a rev number of 65535, it is quite certain that cIOSCORP/DARKCORP is present on the wii. If so, it is recommended that you uninstall it using the How to Uninstall cIOSCORP from your Wii Console guide. cIOSCORP/DARKCORP is only intended for advanced users, who know exactly how it works.
What to do if you don't understand this guide or are uncertain about your system check
Maybe, even after readin this guide, you still don't understand how to read a system check, or are just uncertain about your system check and want someone to take a look at it. No worries, just make a thread about the problem you are having and include the system check. Also take a look at: How to post a system check
That it folks!
I am sure this guide is far from finished and anyone who has a suggestion to improve this guide is requested to do so.