ERR

Meaning

Remedy

ERR.01

No disk in drive

Put a Disk in the drive

ERR.02

No FDS power supply

Make sure there are batteries or an AC adapter plugged in

ERR.03

Broken prong on disk card

Try covering the whole with tape (may not always work)

ERR.04

Wrong maker ID

Can't fix, there is something wrong with the disk

ERR.05

Wrong game name

Can't fix, the FDS thinks the game is a different game, and can't load data

ERR.06

Wrong version name

Can't fix, the games header is messed up

ERR.07

Disk on wrong side

Try flipping the disk over

ERR.08

Disk #1 is wrong

Insert a different disk

ERR.09

Disk #2 is wrong

insert a different disk

ERR.10

Disk #3 is wrong

Insert a different disk

ERR.20*

Screen data differs

Game is corrupt or FDS needs repairs

ERR.21*

Disk header block(*NINTENDO-HVC*)part is wrong

Header for game is messed up, or FDS needs repairs

ERR.22*

Disk header block reecognition #$01 isn't read

Game is corrupt or FDS needs repairs

ERR.23*

Recognition block #$02 can't read for several reasons

Game is corrupt or FDS needs repairs

ERR.24*

File header block recognition #$03 can't read

Game is corrupt or FDS needs repairs

ERR.25*

File data block recognition #$04 can't read

Game is corrupt or FDS needs repairs

ERR.26

Can't save properly to disk card

Disk is either corrupt, or erase some saved games from the disk

ERR.27*

Block end mark seen and ends prematurely

Game is corrupt or FDS needs repairs

ERR.28

The disk unit and the same period can't take it

Unknown

ERR.29

The disk unit and the same period can't take it

Unknown

ERR.30

Disk card too full to save.

Erase some saved games

ERR.31

Data number of a disk card doesn't match up

Insert a different disk