Proto:Nintendo DSi

This page details one or more prototype versions of Nintendo DSi.

A prototype Nintendo DSi was found on December 2018, and dumped on May 2019, containing a prototype System Settings app titled "SDK 6291", as well as a hidden Launcher that would run a check on the console on startup.

Another version was found on December 2019 titled "SDK 7739", with the rom dump coming from a Nintendo DSi devkit. The System Settings and Launcher roms were erased at some point, but was recovered with the help of file recovery tools.

Menu Differences

To do: The DSi prototype menu is stored in VRAM, now we just need a way to trigger it. There are also 2 different revisions, if only we had the ticket and tmd from the 2nd revision...

The menu is much more basic looking, but most of the options seen on a retail DSi are present.

"SDK 6291" System Settings	"SDK 7739" System Settings	Final System Settings
This feature is not available on this version.
This feature is not available on this version.	A similar feature is on the previous screenshot.
This feature is not available on this version.	A similar feature is on the previous screenshot.
This feature is not available on this version.
This feature is not available on this version.
This feature is not available on this version.
This feature is not available on this version.	A similar feature is on the previous screenshot.
This feature is not available on this version.
This feature is not available on this version.	A similar feature is on the previous screenshot.
This feature is not available on this version.
This feature is not available on this version.	A similar feature is on the previous screenshot.
This feature is not available on this version.	A similar feature is on the previous screenshot.
This feature is not available on this version.	A similar feature is on the previous screenshot.
This feature is not available on this version.	A similar feature is on the previous screenshot.
This feature is not available on this version.	A similar feature is on the previous screenshot.
This feature is not available on this version.
This feature is not available on this version.		This feature, or something similar to this is not in the final version.

Error messages in the launcher are also displayed differently.

"SDK 6291" Launcher	"SDK 7739" Launcher

DOS / Internet Explorer Text Strings (SDK 6291)

For some reason, in the Launcher starting at 0x148678 near the end of the rom, a mix of (Free)DOS and Internet Explorer text strings and commands can be found.

UNKNOWN 
LOST_LINK 
AUTH_FAILED 
ASSOC_FAILED 
ILLEGAL_STATE 
INVALID_PARAM 
DISCONNECT_CMD 
INTERNAL_ERROR 
INVALID_PROFILE 
NO_NETWORK_AVAIL 
CSERV_DISCONNECT 
BSS_DISCONNECTED 
NO_RESOURCES_AVAIL
DRAGONINTERFACE_ADD 
DRAGON	
dragon	
INTERFACE_REMOVE 
dragondragon 
driver
IE in 3/4 msg does not match with IE in Beacon/ProbeResp (no IE?)
IE in 3/4 msg does not match with IE in Beacon/ProbeResp
Possible downgrade attack detected - RSN was enabled and RSN IE was in msg 3/4, but not in Beacon/ProbeResp
Pairwise key expansion
wired
OK
PING
PONG
TERMINATE
INTERFACES
UNKNOWN COMMAND
FAIL
INTERFACE_ADD 
INTERFACE_REMOVE 
\FILE000.CHK
CD
EBS
DIR
CAT
DIFF
STAT
QUIT
ECHO
HELP of READCOPY To SEEK
CDCD
MKROM
WRITE
CDDIR
EJECT
RNDOP
CLOSE
MKDIR
CDCAT
HELP:
RMDIR
CMD> File: RDONLY
RENAME
DELETE
CHKDSK
CDREAD
FORMAT
NORMAL
CDCOPY
Avail DSKSEL
SYSTEM
CHSIZE
HIDDEN
S_IREAD 
count 
LSTOPEN
SETATTR
DEVINFO
DELTREE
GETATTR
ARCHIVE
ARDONLY|S_IFREG|ASYSTEM|Fixing 4AHIDDEN|CAT PATHARCHIVE|Fixing 1CDDSKSEL Copied ADIRENT|Fixing 3Fixing 2DIR PATHAVOLUME|S_IFDIR|FILLFILE
CDDSKOPEN
READ FDNOSTAT PATH\FAILSAFE
DSKSEL 
D:
DISK FULLReplaced 
\/:*?"<>|S_IWRITE|PCMCIAINT File(s) 
CDCD PATH RMDIR PATH
BUFFER
STAT
Cant open MKHOSTDISK
CDCAT PATHBAD_FORMAT
CLOSE FDNO
DATA ERROR
CDDSKCLOSE
Volume == CDDIR PATH
path error
MKDIR PATH
CDDSKSEL D: KBytes in DELETE PATH
Cant open :Write error
MODE BITS : user files
CDREAD PATH
PWD Failed 
And File: Kbytes in REGRESSTEST
Formatting  Recovered 
VOLUMELABEL
Cant creat as Device: Close failed
FAILSAFEINIT
FSTAT failed
FAILSAFETEST directories lost chains and deleted
DELTREE PATH
Attributes: ECHO: [args]
GETATTR FILE Blocks Free
hidden files
CRERR_NO_CARD
Press Return 
are the same
Write failure
CDDSKOPEN: D:
BUFFERSTAT D:
flash disk OK
Set cwd failed
Device name : deleting
--> REGRESSTEST D:
Cant find file
DIFF PATH PATH
Usage: READ fd
Write failure Cant open file
CDDSKCLOSE: D:
CRERR_BAD_CARDCOPY PATH PATH total tracks INTERNAL ERROR
Cant open File
FAILSAFECOMMIT
Get cwd failed
Writing Sector Curr > Base hit
Usage: CLOSE fd Is mounted on FAILSAFEINIT D:
Usage: CAT PATH
FAILSAFE
RESTORE
Volume is dirty
Volume is cleanCopyBlock from SEEK FDNO RECORD
Can not delete: CDCOPY PATH PATH
Cant open file: Media status 
Usage: READ PATH
Failsafe disabled
Read Audio Failed
RNDOP PATH RECLEN
FAILSAFE
COMMIT D:
Error Accessing: Usage: DSKOPEN D:
ERTFS Device List
FAILSAFE
RESTORE D:
Unkown User String
Unkown User Prompt
Lost Chains
CRERR_CHANGED_CARD
CRERR_CARD_FAILURE
Can not open disk Sector found twice
Flash emu hit trap
RENAME PATH NEWNAME
PIO Mode set failed
Get LBA VTOC failed
Usage: FSTAT D:
PATH
Files are different
Usage: MKDIR D:
PATHUsage: RMDIR D:
PATHFailed Scanning Fat
Example:
CHKDSK A: 0
Example:
CHKDSK A: 1
A Lost Chain
Usage: DSKCLOSE D: PIO Mode set succeed
pc_ertfs_init failed
Invalid Drive number
Removing Directory
Usage: DSKSELECT D: MKHOSTDISK win9xpath
USAGE: BUFFERSTAT D:
Usage: DELETE D:
PATHCalling media format
Dma Error FLERR_DMA Name Logging Disabled
Failsafe init failed
CD Memory init failed
Usage: WRITE fd data Usage: DELTREE D:
PATH
get attributes failed
Usage: GETATTR D:
PATHDEVICE RESOURCE ERROR
Avail count messed up
Set attributes failed
spare block not found
cd_set_default failed
flash media too large
Invalid Sector status
Usage: REGRESSTEST D:
Creating Subdirectory:
WRITE FDNO QUOTED DATA
Seek operation failed
Read operation failed 
is larger than File: KBytes in bad sectors
Usage: DIFF PATH PATH that were not deleted
Time out FLERR_IO_TMO Can not get attributes
MapWindow beyond block
Usage: FAILSAFEINIT D:
Failsafe commit failed
Creating Subdirectory
Performing File io test
Usage: SEEK fd recordno
Write operation failed
CHSIZE FILENAME NEWSIZE*** 
Wareleveling block Creating Subdirectory
Set Default Drive Failed lost clusters found in
Creating .CHK Files
Format failed resid != 0
Unspecified floppy error
Usage: FAILSAFECOMMIT D:
Usage: FAILSAFERESTORE D:
NORMAL FILE (No bits set)
Flash: Exception at line new spare block not found
Usage: COPY CDPATH OSPATH
Autoformatting RAM Devices
Autoformatting Drive Id - Spawn of main task failed.
No more random file slots
Usage: RNDOP D:
PATH RECLEN
pro_failsafe_status failed
FAILSAFE: Restore required
Type A to abort R to Retry
Usage: CHSIZE PATH NEWSIZE
Failed Scanning Disk Files Bytes Per Allocation Unit
Failed Scanning This File
Usage: RENAME PATH NEWNAME
Change size function failed
Usage: COPY FROMPATH TOPATH
ProgramData: outside Window
Unknown ATAPI Command Issued
Spawn of timer task failed.
FAILSAFE: no journal present
Kbytes total disk space
Size Adusted, This File: *** adjusting EraseCount by EJECT (Trigger Remove Event)
FILLFILE PATH PATTERN NTIMES
EraseBlock: block not mapped
Failed Allocating Core To Run
CD PATH or CD to display PWD Failed Scanning Crossed Files
Path too deep, directory == 
Error during seek FLERR_SEEK Invalid sector value in flash
Performing long file name test
Failsafe file blocks consumed
Failed Creating .CHK Files
Crossed Chains Were Found Free sectors available on disk 
Total Allocation Units On Disk
Chains Crossed at Cluster
Failed Scanning This Directory
This many logical blocks remain
Error During Recal FLERR_RECAL attempt to unset bits in flash!
Performing buffered file io testFormat: Press Y to format media
Usage: CHKDSK DRIVE: WRITECHAINS
Failed Scanning This Directory -
Sector Not Found FLERR_IO_SECTOR
Failed Autoformatting Drive Id -
Failsafe enabled with journaling 
FAILSAFE: IO error during restore
bad long file name chains found
Error during format FLERR_FORMAT RTFSYSErrorExit() called at line
Not implemented. See ide ioctl...
FAILSAFE: bad journal file present
FAILSAFETEST D: (must be hostdisk)
Size Needs Adusting This File:
Error resetting drive FLERR_RESET
Error during specify FLERR_SPECIFY
Unknown Drive type FLERR_UNK_DRIVE
Flash device is formatted already.
Call again to override and format.
Total Number of Block Buffers
Pending writes on Block Buffers
Block Buffers available
Block Buffer Cache Hits
Block Buffer Cache Misses
Block Buffer Low Water
Block Allocation failures
regress_error was called with error
Total Number of FAT Buffers
FAT Buffers never used
Performing Large (4Gig)
File io test
FAT Buffer Primary Cache Hits
FAT Buffer Secondary Cache Hits
FAT Buffer Secondary Cache Loads
FAT Buffer Secondary Cache Swaps
Pending writes on FAT Buffers
FAT Buffers available
Format: Press Y to partition media
Usage: FILL
FILE PATH PATTERN NTIMES
Failsafe already running on a drive
Failsafe enabled with no journaling
Runs chkdsk on A: writes lost chains
DEVINFO (Display Device Information)
Can not determine Media
FLERR_MEDIA 
pc_report_error was called with error
FAILSAFE: Restore unknown return code
Format: Press Y to format the volume
Failsafe file blocks still available Failed Writing This Adusted File:
Chkdsk Giving up. Too Many Lost Chains
CHKDSK D:
<0,1> 1 is write lost chains
The drive contains this many cylinders
There are this many cylinders remainng
Chkdsk gives up, too many crossed Files
flash driver: ca not find a free sector
Exitting and restoring interrupt vectors
Enter the drive to format as A:, B: etc
Use -f option to create .CHK files
Chkdsk gives up, Too many crossed chains
NDRIVES is too small to mount all devices
FAILSAFE: journal file has checksum error
Format - check media failed. Press return
FAILSAFE: Volume was restored sucessfully
Format: Media format failed. Press return
Abnormal Termination Error FLERR_ABN_TERM
flash driver: ca not find sector to write
PCMCIAINT (Force a PCMCIA mgmt Interrupt)
Format: Format volume failed. Press return
FORMAT (routine will prompt for arguments)
flash emulator: called with file not openuser files in this many directories
LSTOPEN (lists all open file decscriptors)
Spawn of main task failed. change priority ?
Spawn of timer task failed. change priority
Regression Test Error, press any key to exit
Format: Media partition failed. Press return
Runs chkdsk on A: does not write lost chains
Failed Scanning This Directory on LFN Pass
-Invalid drive selection to format, press return
Format: get media geometry failed. Press return
The drive is contains this many logical blocks
FAILSAFE: Volume up to date, no restore required
Command shell only supports one failsafe session
Floppy controller not responding
FLERR_CHIP_HUNG SETATTR D:
PATH RDONLY|HIDDEN|SYSTEM|ARCHIVE|NORMAL
Format: Press Y to USE LBA formatting, N to use CHS 
Format: Bad input for partition values. Press return
Usage: SETATTR D:
PATH RDONLY|HIDDEN|SYSTEM|ARCHIVE|NORMAL
Invalid Interleave For Media Type FLERR_INVALID_INTERLEAVE
Format: Select the number of lbas for the first partition :
Format: Select the number of cyls for the first partition :
Format: Select the number of lbas for the second partition :
Format: Select the number of cyls for the second partition :
<return> for next, (P)<return> for Previous, (Q <return> to run demo
\/:*?"<>| ,;=+[]
CON,
PRN,
NUL,
AUX,
LPT1,
LPT2,
LPT3,
LPT4,
COM1,
COM2,
COM3,
COM4
con,
prn,
nul,
aux,
lpt1,
lpt2,
lpt3,
lpt4,
com1,
com2,
com3,
com4
FAT32
DEVCTL_IO_READ ... block:%x, count:%x -> buf:%x
DEVCTL_IO_WRITE ... block:%x, count:%x <- buf:%x
DEVCTL_GET_GEOMETRY
DEVCTL_FORMAT
DEVCTL_CHECKSTATUS
DEVCTL_WARMSTART
DEVCTL_POWER_RESTORE
DEVCTL_POWER_LOSS
DEVCTL_unknown
FILE

This seems to be a compile error, as SDK 7739 removed all text strings.

Video

This is a video of the SDK 6291 Settings app running on the prototype hardware.