why do only a few games install but the rest dont.
probably the files you downloaded are not good or incomplete.
if you know about some good guide for that redNAND process please share the link here.
I still don`t get it
It's still FOR DEVS, not for end users. that's probably why it's not easy.
wait few days until it becomes more easy for end users. There's currently no easy way, except downloading illegal file on illegal ISO sharing website, but you take the risk to brick because you used random firmware files.
if you really want to do it, you will need to compile a project by installing few programs and run few command lines and find some info by yourself too.
https://gbatemp.net/threads/how-to-load-a-fw-img-for-any-file-dumping-wiiubru-status-update.445840/ (but you probably saw it, that's why you want something easier)
https://gbatemp.net/threads/a-complete-rednand-guide.446878/ (redNAND, but aimed at installing illegal SDK files)
https://gbatemp.net/threads/how-to-setup-rednand-w-sigpatches.446818/ (another guide, with the first step being "compile this, if you don't know how, it's not for you")
Anyone knows a way to backup USB installed titles infos before unlinking sysnand and rednand to avoid complete reinstall of games.
There's no way. The "unlinking" is done by formating the real NAND.
formating it is deleting ALL information and generating a NEW unique console key for all installed titles (rendering your old titles useless). That's the purpose of unlinking, not using the same console ID.
it would be easier if we could format the redNAND, but it's actually bricking it. so the solution is to format sysNAND instead. but you lose all your data..