If that fails, move to the SD card health check. If you have a modchip, be patient with timing. The Horizon OS is waiting; we just need to fix the path for Hekate to find it.
Use FAT32 over exFAT to reduce the chance of file corruption. Regularly backup your SD card data.
Hekate cannot locate or properly read the pkg2 file from the NAND (system memory).
A: This is a clear sign of a mismatch. Your BOOT0 / BOOT1 data probably belongs to a different firmware version than what is on your internal sysNAND. Your emuMMC is a separate file on your SD card and thus unaffected. Restoring correct BOOT0 / BOOT1 backups that match your sysNAND version will resolve this. pkg2 read failed failed to launch hos
When you see or "pkg2 decryption failed" , it means the custom bootloader (Hekate) or the Atmosphere custom firmware (CFW) loader (like fusée) was able to successfully load and verify pkg1 , but was unable to read, decrypt, or verify the pkg2 data required to actually start the Horizon operating system.
If the pkg2 data on the BCPKG2 partition of your NAND is corrupt, you may need to reflash it. This is an advanced procedure but was recommended by community experts for persistent pkg2 errors.
Delete the atmosphere and bootloader folders from your SD card (after backing them up). If that fails, move to the SD card health check
: Ensure that the BOOT0 and BOOT1 versions match your system's GPP partition (general-purpose partition containing user data and system files), or you risk introducing the exact mismatch you are trying to fix.
On your PC, navigate to SD:\bootloader\hekate_ipl.ini .
A dying or counterfeit SD card is a common hidden cause of "pkg2 read failed." Use FAT32 over exFAT to reduce the chance of file corruption
Visit the official GitHub repository to download the latest release of CTCaer Hekate and the latest version of the Atmosphère Custom Firmware.
: On OLED or V2 models, poor soldering on "Point A" can trigger this specific error. 2. Recommended Fixes Update Your Bootloader and CFW Refresh Hekate : Download the latest release from the official Hekate GitHub . Replace the bootloader
When you turn on a Switch running custom firmware, the boot sequence follows a strict chain: