This error generally occurs when the bootloader cannot find or decrypt the Horizon OS kernel components due to:
: Using an old version of Hekate or Atmosphère that does not support your current Nintendo Switch system firmware. pkg2 read failed failed to launch hos
: Back up your /Nintendo and /emummc folders (where games/saves are), then delete the existing /atmosphere and /bootloader folders from your SD card. This error generally occurs when the bootloader cannot
: Data corruption on the SD card, frequently seen with exFAT formatting or low-quality/fake cards. pkg2 read failed failed to launch hos
: A mismatch between the pkg1 (primary bootloader) and pkg2 (OS kernel) versions, often after a failed or incomplete system update.