Recovery

Recovery

Full detail: NebulaOS-firmware's Developer Recovery page.

Least to most invasive: it usually just fixes itself on the next reboot (unless the kernel never gets far enough to trigger that) → switch slots over SSH → USB recovery back to stock using ballaswag/ingenic-usbboot if networking's dead → manual repair over SSH (no dedicated script exists) → a full factory restore, which is Creality's own tooling, not something NebulaOS provides or has run itself.

Most of what matters — printer.cfg, calibration, WiFi credentials, GuppyScreen config/theme, G-code uploads — survives a slot switch. Mainsail config and camera config/timelapses genuinely haven't been checked either way.