Recovery

Situation	r24	r30
Won't boot, straps wrong	Fix BOOT SEL, power-cycle	Same
Storage corrupt	New SD or USB flash	USB flash
Partial USB flash	ROM DFU still available if OTG works	Same
kaonic-flash boot / RAM-only	Loads TF-A/FIP without writing storage — diagnostic	Same
Wrong OTP eMMC boot fuses	n/a	May be unbootable; depot only

Keep a known-good image bundle for each board revision.

Production OTP provisioning is a factory procedure. Field operators should recover storage without changing OTP.