Must be non-zero on retail units, otherwise the first bootloader panics.
Must be non-zero on retail units, otherwise the first bootloader panics.
−
On debug units it can be zero, which tells the bootloader to choose from two debug master key seeds. If set to non-zero on a debug unit, it tells the bootloader to choose from two master key seeds (with the second one being the retail master key seed).
+
On prototype units it can be zero, which tells the bootloader to choose from two pre-production master key seeds. If set to non-zero on a prototype unit, it tells the bootloader to choose from two master key seeds (with the second one being the same as the retail master key seed).
[4.0.0+] This value is no longer used during boot.
[4.0.0+] This value is no longer used during boot.