I don't want to make any mistakes, so just in case I missed read something I'm going to ask for clarification, once I install haxchi, from homebrew browser, I believe I read I can install other homebrew on system menu but to use that, I think it says I would have launch haxchi first. I basically am going to use this for emulators. A hard drive isn't necessary for this since I just want this for emulators.
Yes, you understood correctly.
You need to launch Haxchi before launching any non official game/channels/homebrew/whatever.
Haxchi is patching the firmware to disable signature check, so you can then launch any installed bad-signed titles. (titles not officially signed by nintendo, or signed for another console, like pirated eShop or DLC)
As this patch is done temporarily in memory, it is disabled when you shutdown the console. you need to do it again next time you boot the console, if you need it (no need to launch haxchi for no reason)
Haxchi is also a quick way to launch the "homebrew launcher" homebrew, from where you can select any other homebrew you want to use.
haxchi is replacing the (unstable) browser exploit method to launch homebrew.
To choose whether you want to patch the system or launch the "homebrew launcher", there is a Button Combo feature. you press and keep pressed specific button when launching Haxchi to choose how it reacts.
I have Two quick easy questions for somebody experienced to answer:
1. My loaders(homebrew ones like Retroarch and Nintendont) are giving me an Error Code: 199-9999 if I run them when I start the Wii U.
Do I always have to run CBHC first and autoboot to the system menu to make them work?
2. Is it safe to re-install Coldboot CBHC/Haxchi over itself?
1.1 : Nintendont is not a WiiU homebrew. it's a Wii or vWii homebrew.
unless you launch it by using the newly released method to launch vWii homebrew from Wii virtual console injected channels.
You should be more precise when reporting issue, we can't help if we don't have all the informations.
If you are using WiiVC channels, then maybe they are not correctly build. seek help in the correct official script injector thread.
1.2: you don't "have" to run CBHC first, as it's ALWAYS run first.
YOU don't run CBHC, as the console is doing it for you !
CBHC is launched AUTOMATICALLY as console's boot, specially to prevent you from having to launch it every time!
Do not launch it, it's already done.
Of course, that's only if you follow the install tutorial correctly, which I doubt you did now that you report somethings like that.
it looks like CBHC is not booting automatically and is always asking you something?
just set CBHC to autoboot to "sysmenu" and forget about it.
2.: Please, read the guide on the first post.
if you don't read guides, you'll do wrong things (again?)
This is answered many times.
I don't understand why people are asking questions about a guide before reading it, when answers are already there.
If you are not willing to read guides because you are in a haste and want to skip steps, then you'll just end with a broken system.
.... short answer : yes, just reinstall and overwrite CBHC over CBHC, OR haxchi over haxchi.
You don't need to delete first. DO NOT DO things you shouldn't by not reading guides.
DO NOT REINSTALL HAXCHI OVER CBHC !
Please, read and follow guides.