The 2nd method you posted, I was using that for a while then I noticed when opening tinfoil new games/updates/dlc no longer appeared. Noticed this since yesterday when I last tried it. I think changes were made not too long ago to block the modified nro or maybe I'm not spoofing the right version number? Or maybe there's a newer tinfoil mod nro. As of today, are you still able to see new games/dlc/updates. Will take a look a few posts back, but I think I tried already. Will double check
EDIT: So it turns out I had been using an outdated tinfoil mod nro, found the github with the latest version and it works now. Thank you!