Troubleshooting: "Firmware failed to load iwl-debug-yoyo.bin" on Linux If you are seeing the error firmware: failed to load iwl-debug-yoyo.bin (-2)
Save, then update GRUB:
If you compiled your own kernel, ensure CONFIG_IWLWIFI_DEBUG is unless you actually need it. Also check: firmware failed to load iwldebugyoyobin free