Retro Fix Lab Transfer files from Windows to KNULLI over SMB in Explorer or SFTP in WinSCP. This release-pinned guide explains Firefly, Gladiator II, and Scarab service/authentication differences, then verifies transport safely with one unique disposable text file that is read back and removed.
Install KNULLI Scarab `20260511` on an RG CubeXX using the exact device image and a spare microSD card. This documentation-based guide covers the compressed-file SHA-256, multiple target checks, safe GUI imaging, Windows format prompts, TF1/TF2 first-boot setup, and the narrow EmulationStation success endpoint.
If M+B does not open RetroArch Quick Menu on an RG CubeXX, first confirm a libretro session and use the exact built-in sequence: hold Menu/Function, then tap physical B. This release-pinned guide checks player-1 ownership, scoped RetroArch Menu settings, Full UI, and the N64 Limited Hotkeys exception without destructive resets or config edits.
If Quick Load will not restore a state in a KNULLI RetroArch game, check RetroAchievements Hardcore Mode before assuming the state system is broken. This release-pinned guide explains the disputed Create wording, the consistent Load restriction, the Casual eligibility tradeoff, and a safe FCEUmm test using one fresh slot.
If KNULLI lists a second SD card but still uses Internal storage, verify the selected label and capacity, restart once, and compare User Disk Usage. This source-based guide explains UUID persistence, Internal fallback, replacement cards, ambiguous entries, and why fresh folders do not prove migration.
KNULLI can finish a scrape without displaying box art. This documentation-based guide separates provider errors, no-match results, missing media, theme-field mismatches, skipped games, and gamelist refresh issues across Firefly, Gladiator II, and Scarab using one visible game and Box 2D.
KNULLI Wi‑Fi failures are not all the same. This documentation-based guide separates missing networks, authentication failures, absent IP addresses, disconnects, and band/access-point differences on RG CubeXX across Firefly, Gladiator II, and Scarab—without weakening network security.
KNULLI can be missing from Windows Network even when its SMB share works directly. This documentation-based guide separates discovery, hostname, IP, credential, and read/write failures across Firefly, Gladiator II, and Scarab, including Windows 11 24H2 security constraints.
A KNULLI Missing BIOS warning can come from the wrong active card, path, filename, case, firmware revision, or core instructions. This documentation-based guide explains `/userdata/bios`, KNULLI’s checksum-aware checker, RetroArch Core Information, required versus optional firmware, and Firefly/Scarab scope without providing BIOS downloads.
If a copied game is missing from KNULLI, verify the active `/userdata` storage, use the exact system folder under `roms`, confirm the file format, and run Update gamelists. This source-based guide is scoped to KNULLI Scarab 20260511 on RG CubeXX and does not claim hands-on testing.