The most frequent fix is ensuring all files on your SD card are compatible with the latest Switch update.
: Back up your /Nintendo and /emummc folders (where games/saves are), then delete the existing /atmosphere and /bootloader folders from your SD card. pkg2 read failed failed to launch hos
The error message (Horizon OS) is a common fatal error encountered by Nintendo Switch users running custom firmware (CFW) like Atmosphère or the Hekate bootloader . It typically indicates a communication breakdown between the console's hardware (eMMC) and the software stored on your SD card. Common Causes of the Error The most frequent fix is ensuring all files
: 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