DMIEdit 5.20 is typically available in two formats:
This is where DmiEdit+520 shines—provided the hardware supports it. dmiedit+520
While "520" is not a standard universal command-line switch for the tool, it frequently appears in the following contexts: DMIEdit 5
Incorrect DMI editing can permanently corrupt your motherboard’s flash memory, requiring a physical SPI programmer to recover. a user ID
fs0:\> reset
It looks like you’re referencing a code or identifier: — possibly related to a game command, a mod tool (like DMIEdit for Dream Maker / BYOND), a user ID, or an internal key.