Structure

These have been redesigned from the 3DS so that they fit within a Aarch64 MOV instruction immediate most of the time (without requiring the additional MOVK).

Bits	Field
8-0	Module
21-9	Description

When a fatal-error is received the error code is outputted using the following formatter:

 %04d-%04d

.. where the first code is 2000 + Module, and the other being Description. Bits >=22 from the error-code are unused when displaying fatal-errors, since the Description ends with bit21.

Modules

Value	Name
1	Kernel
2	FS
3	OS (Memory, Thread, Mutex, NVIDIA)
4	HTCS
5	NCM
6	DD
7	Debug Monitor
8	LR
9	Loader
10	CMIF (IPC command interface)
11	HIPC (IPC)
15	PM
16	NS
17	Sockets
18	HTC
20	NCM Content
21	SM
22	RO userland
24	SDMMC
25	OVLN
26	SPL
100	ETHC
101	I2C
102	GPIO
103	UART
105	Settings
107	WLAN
108	XCD
110	NIFM
111	Hwopus
113	Bluetooth
114	VI
115	NFP
116	Time
117	FGM
118	OE
120	PCIe
121	Friends
122	BCAT
123	SSL
124	Account
125	News
126	Mii
127	NFC
128	AM
129	Play Report
130	AHID
132	Home Menu (Qlaunch)
133	PCV
134	OMM
135	BPC
136	PSM
137	NIM
138	PSC
139	TC
140	USB
141	NSD
142	PCTL
143	BTM
144	EC (Shop)
145	ETicket
146	NGC (Bad Words)
147	Error Report
148	APM
150	Profiler
151	Error Upload
153	Audio
154	NPNS
155	NPNS HTTP Stream
157	ARP
158	SWKBD
159	Boot
161	NFC Mifare
162	Userland assert
163	Fatal
164	NIM Shop
165	SPSM
167	BGTC
168	Userland crash
180	SREPO
181	Dauth
202	HID
203	LDN
205	Irsensor
206	Capture
208	Manu
209	ATK
210	Web
211
212	GRC
216	Migration
217	Migration Idc Server
345	libnx
346	Homebrew ABI
347	Homebrew Loader
348	libnx Nvidia errors
800	General web-applet
809	WifiWebAuthApplet
810	Whitelisted-applet
811	ShopN

8XX is for/includes system applets.

Error codes

Value	Module	Description	Notes
0x1C01	1	14	Invalid kernel capability descriptor
0x4201	1	33	IsDebugMode isn't set.
0x8C01	1	70	No more debug events
0xCA01	1	101	Invalid size
0xCC01	1	102	Invalid address
0xCE01	1	103	Slabheap full
0xD001	1	104	Memory full
0xD201	1	105	Handle-table full.
0xD401	1	106	Invalid memory state / invalid memory permissions.
0xD801	1	108	Invalid memory permissions.
0xDC01	1	110	Invalid memory range
0xE001	1	112	Invalid thread priority.
0xE201	1	113	Invalid processor id.
0xE401	1	114	Invalid handle.
0xE601	1	115	Syscall copy from user failed.
0xE801	1	116	Invalid combination
0xEA01	1	117	Time out. Also when you give 0 handles to svcWaitSynchronizationN.
0xEC01	1	118	Canceled/interrupted [?]
0xEE01	1	119	Exceeding maximum
0xF001	1	120	Invalid enum
0xF201	1	121	No such entry
0xF401	1	122	Irq/DeviceAddressSpace/{...} already registered
0xF601	1	123	Port remote dead
0xF801	1	124	[Usermode] Unhandled interrupt
0xFA01	1	125	Wrong memory permission?
0xFC01	1	126	Reserved value
0xFE01	1	127	Invalid hardware breakpoint
0x10001	1	128	[Usermode] Fatal exception
0x10201	1	129	Last thread didn't belong to your process
0x10601	1	131	Port max sessions exceeded
0x10801	1	132	Resource limit exceeded
0x20801	1	260	Command buffer too small
0x41001	1	520	Process not being debugged
0x402	2	2	Directory/file(?) already exists.
0xE02	2	7	Savedata already mounted
0x7802	2	60	The specified NCA-type doesn't exist for this title.
0x7D202	2	1001	Process does not have RomFs
0x7D402	2	1002	Title-id not found / savedata not found.
0xFA202	2	2001	SD card not inserted
0x13B002	2	2520	Gamecard not inserted
0x13DA02	2	2541	Version check failed when mounting gamecard sysupdate partition?
0x171402	2	2954	Invalid gamecard handle.
0x196002	2	3248	Out of memory
0x196202	2	3249	Out of memory
0x1A4A02	2	3365	Out of memory
0x235202	2	4521	Invalid NCA Key index
0x235E02	2	4527	NCA-path used with the wrong titleID.
0x250E02	2	4743	Corrupted NAX0 header.
0x251002	2	4744	Invalid NAX0 magicnum.
0x296A02	2	5301	Mountpoint not found
0x2EE202	2	6001	Invalid input
0x2EE602	2	6003	Path too long
0x2EEA02	2	6005	Invalid directory path.
0x2F5A02	2	6061	Offset outside storage
0x313802	2	6300	Operation not supported
0x320002	2	6400	Permission denied
0x326602	2	6451	Missing titlekey(?) required to mount content
0x3EA03	3	501	Invalid handle
0x3EE03	3	503	Invalid memory mirror
0x7FE03	3	1023	TLS slot is not allocated
0xA05	5	5	NcaID not found. Returned when attempting to mount titles which exist that aren't 8XX titles, the same way 8XX titles are mounted.
0xE05	5	7	TitleId not found
0x1805	5	12	Invalid StorageId
0xDC05	5	110	Gamecard not inserted
0x17C05	5	190	Gamecard not initialized
0x1F405	5	250	Sdcard not inserted
0x20805	5	260	Storage not mounted
0x806	6	4	Converted from error 0xD401
0x1006	6	8	Converted from error 0xE401
0x408	8	2	Program location entry not found
0x608	8	3	Invalid context for control location
0x808	8	4	Storage not found
0xA08	8	5	Access denied
0xC08	8	6	Offline manual HTML location entry not found
0xE08	8	7	Title is not registered
0x1008	8	8	Control location entry for host not found
0x1208	8	9	Legal info HTML location entry not found
0x209	9	1	Args too long.
0x409	9	2	Maximum processes loaded.
0x609	9	3	NPDM too big.
0x19009	9	200	Invalid access control sizes in NPDM.
0x809	9	4	Invalid NPDM.
0xA09	9	5	Invalid files.
0xE09	9	7	Already registered.
0x1009	9	8	Title not found.
0x1209	9	9	Title-id in ACI0 doesn't match range in ACID.
0x6609	9	51	Invalid memory state/permission
0x6A09	9	53	Invalid NRR
0xA209	9	81	Unaligned NRR address
0xA409	9	82	Bad NRR size
0xAA09	9	85	Bad NRR address
0xAE09	9	87	Bad initialization
0xC809	9	100	Unknown ACI0 descriptor
0xCE09	9	103	ACID/ACI0 don't match for descriptor "KernelFlags"
0xD009	9	104	ACID/ACI0 don't match for descriptor "SyscallMask"
0xD409	9	106	ACID/ACI0 don't match for descriptor "MapIoOrNormalRange"
0xD609	9	107	ACID/ACI0 don't match for descriptor "MapNormalPage"
0xDE09	9	111	ACID/ACI0 don't match for descriptor "InterruptPair"
0xE209	9	113	ACID/ACI0 don't match for descriptor "ApplicationType"
0xE409	9	114	ACID/ACI0 don't match for descriptor "KernelReleaseVersion"
0xE609	9	115	ACID/ACI0 don't match for descriptor "HandleTableSize"
0xE809	9	116	ACID/ACI0 don't match for descriptor "DebugFlags"
0x1A80A	10	212	Bad magic (expected 'SFCO')
0x20B	11	1	Size too big to fit to marshal.
0x11A0B	11	141	Went past maximum during marshalling.
0x1900B	11	200	Session doesn't support domains.
0x25A0B	11	301	Remote process is dead.
0x3D60B	11	491	IPC Query 1 failed.
0x20F	15	1	Pid not found
0x60F	15	3	Process has no pending events
0xA0F	15	5	Application already running
0x410	16	2	Title-id not found
0xF010	16	120	Gamecard sysupdate not required
0x1F610	16	251	Unexpected StorageId
0x415	21	2	Not initialized.
0x615	21	3	Max sessions
0xC15	21	6	Invalid name (all zeroes)
0x1015	21	8	Permission denied
0x416	22	2	Address space is full
0x616	22	3	NRO already loaded
0x816	22	4	Invalid NRO header values
0xC16	22	6	Bad NRR magic
0x1016	22	8	Reached max NRR count
0x1216	22	9	Unable to verify NRO hash or NRR signature
0x80216	22	1025	Address not page-aligned
0x80416	22	1026	Incorrect NRO size
0x80816	22	1028	NRO not loaded
0x80A16	22	1029	NRR not loaded
0x80C16	22	1030	Already initialized
0x80E16	22	1031	Not initialized
0x41A	26	2	Argument is invalid
0xC81A	26	100	Incorrect buffer size
0xCA1A	26	101	Unknown TZ error
0xD01A	26	104	All AES engines busy
0xD21A	26	105	Invalid AES engine-id
0x19669	105	203	Setting value cannot be NULL
0x1BA69	105	221	Setting group name has zero length
0x1E269	105	241	Setting group name is too long (64 character limit?)
0x1E469	105	242	Setting name is too long (64 character limit?)
0x20A69	105	261	Setting group name ends with '.' or contains invalid characters (allowed: [a-z0-9_\-.])
0x20C69	105	262	Setting name ends with '.' or contains invalid characters (allowed: [a-z0-9_\-.])
0x272	114	1	Generic error
0xCC74	116	102	Time not set
0x287C	124	20	Argument is NULL
0x2C7C	124	22	Argument is invalid
0x3C7C	124	30	Bad input buffer size
0x407C	124	32	Invalid input buffer
0x3EC80	128	502	must close IStorageAccessor before pushing IStorage
0x7A880	128	980	`am.debug!dev_function` setting needs to be set
0x3CF089	137	7800	Unknown/invalid libcurl error.
0x3E8289-0x3F4089	137	8001-8096	libcurl error 1-96. Some of the libcurl errors in the error-table map to the above unknown-libcurl-error however.
0x68A	138	3	Not initialized.
0x668C	140	51	USB data-transfer in progress
0xD48C	140	106	Invalid descriptor
0x1928C	140	201	USB device not bound / interface already enabled
0x299	153	1	Invalid audio device
0x499	153	2	Invalid buffer address
0x699	153	3	Invalid sample rate
0x1499	153	10	Invalid channel count
0xC0899	153	1540	Audio output was already started
0x3C9D	157	30	Address is NULL
0x3E9D	157	31	PID is NULL
0x549D	157	42	Already bound
0xCC9D	157	102	Invalid PID
0xF0CD	205	120	IR image data not available/ready.
0x35B	347	1	Failed to init SM.
0x55B	347	2	Failed to init FS.
0x75B	347	3	Failed to to open NRO file. May also happen when SD card isn't inserted / SD mounting failed earlier.
0x95B	347	4	Failed to read NRO header.
0xB5B	347	5	Invalid NRO magic.
0xD5B	347	6	Invalid NRO segments.
0xF5B	347	7	Failed to read NRO.
0x135B	347	9	Failed to allocate heap.
0x255B	347	18	Failed to map code-binary memory.
0x275B	347	19	Failed to map code memory (.text).
0x295B	347	20	Failed to map code memory (.rodata).
0x2B5B	347	21	Failed to map code memory (.data+.bss).
0x315B	347	24	Failed to unmap code memory (.text).
0x335B	347	25	Failed to unmap code memory (.rodata).
0x355B	347	26	Failed to unmap code memory (.data+.bss).

FS Error Codes

The following are the error codes recognized by nn::fs::detail::LogErrorMessage found in some factory titles:

Value	Description	Message
0x7802	60	Error: Specified mount name already exists.
0xD401	106	Error: Passed buffer is not usable for fs library.
0x7D202	1001	Error: Specified partition is not found.
0x7D402	1002	Error: Specified target is not found.
0xFA002 - 0x138602	2000 - 2499	Error: Failed to access SD card.
0x136802 - 0x176E02	2500 - 2999	Error: Failed to access game card.
0x177202	3001	Error: Specified operation is not implemented.
0x177A02	3005	Error: Specified value is out of range.
0x1B5802 - 0x1F3E02	3500 - 3999	Error: Failed to access MMC.
0x1F4202 - 0x219602	4001 - 4299	Error: ROM is corrupted.
0x219A02 - 0x232602	4301 - 4499	Error: Save data is corrupted.
0x232A02 - 0x23EE02	4501 - 4599	Error: NCA is corrupted.
0x23F202 - 0x243E02	4601 - 4639	Error: Integrity verification failed.
0x244202 - 0x246602	4641 - 4659	Error: Partition FS is corrupted.
0x246A02 - 0x248E02	4661 - 4679	Error: Built-in-storage is corrupted.
0x249202 - 0x24B602	4681 - 4699	Error: FAT FS is corrupted.
0x24BA02 - 0x24DE02	4701 - 4719	Error: HOST FS is corrupted.
0x1F4002 - 0x270E02	4000, 4300, 4500, 4600, 4640, 4660, 4680, 4700, 4720-4999	Error: Data is corrupted.
0x271002 - 0x2EDE02	5000-5999	Error: Unexpected failure occurred.
0x2EE402 - 0x2F1A02	6002-6029	Error: Invalid path was specified.
0x2F5A02	6061	Error: Invalid offset was specified.
0x2F5C02	6062	Error: Invalid size was specified.
0x2F5E02	6063	Error: Null pointer argument was specified.
0x2EE002	6000	Error: Precondition violation.
0x2EE202 - 0x306E02	6001-6199	Error: Invalid argument was specified.
0x307202	6201	Error: OpenMode_AllowAppend is required for implicit extension of file size by WriteFile().
0x307002 - 0x313602	6200, 6202 - 6299	Error: Invalid operation for the open mode.
0x313802 - 0x31FE02	6300-6399	Error: Unsupported operation.
0x320002 - 0x32C602	6400-6499	Error: Permission denied.
0x346402	6706	Error: Enough journal space is not left.
0x346A02	6709	Error: The open count of files and directories reached the limitation.

Fatal Errors

Error	Description
2162-0002	Can be triggered by running svcBreak. The svcBreak params have no affect on the value of the thrown error-code.
2168-0000	Userland ARM undefined instruction exception
2168-0001	Userland ARM prefetch-abort due to PC set to non-executable region
2168-0002	Userland ARM data abort. Also caused by abnormal process termination via svcExitProcess. Note: directly jumping to nnMain()-retaddr from non-main-thread has the same result.
2168-0003	Userland PC address not aligned to 4 bytes
2168-0008	Can occur when attempting to call an svc outside the whitelist

Support Errors

Error	Module	Description	Notes
	{web-applets listed above}	2750	MP4 parsing failed.

Normal error-codes displayed by the system also use the same format as fatal-errors.