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-%04x

.. 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	NVIDIA
5	NCM
6	DD
8	LR
9	Loader
10	CMIF (IPC command interface)
11	HIPC (IPC)
15	PM
16	NS
18	HTC
21	SM
22	RO userland
24	SDMMC
26	SPL
100	ETHC
101	I2C
105	Settings
110	NIFM
114	Display
116	NTC
117	FGM
120	PCIE
121	Friends
123	SSL
124	Account
126	Mii
129	Play Report
133	PCV
134	OMM
137	NIM
138	PSC
140	USB
143	BTM
147	ERPT
148	APM
154	NPNS
161	NFC
162	Userland assert
168	Userland crash
203	HID
206	Capture
651	TC
669	ARP
800	General web-applet
809	WifiWebAuthApplet
810	Whitelisted-applet
811	ShopN

8XX is for/includes system applets.

Error codes

Value	Description	Description
0x1C01	14	Invalid kernel capability descriptor
0xCA01	101	Invalid size
0xCC01	102	Invalid address
0xCE01	103	Address is NULL / buffer size is too small.
0xD201	105	Handle-table full.
0xD401	106	Invalid memory state / invalid memory permissions.
0xD801	108	When trying to set executable permission on memory.
0xDC01	110	Stack address outside allowed range
0xE001	112	Invalid thread priority.
0xE201	113	Invalid processor id.
0xE401	114	Invalid handle.
0xE601	115	Syscall copy from user failed.
0xE801	116	Invalid combination
0xEA01	117	Time out? When you give 0 handles to svcWaitSynchronizationN.
0xEE01	119	Exceeding maximum
0xF001	120	Invalid enum
0xF201	121	No such port
0xF601	123	Port remote dead
0xF801	124	Unhandled usermode exception
0xFA01	125	Wrong memory permission?
0x10601	131	Port max sessions exceeded
0x10801	132	Resource limit exceeded
0xE02	7	High byte in input u64 is zero.
0x7802	60	The specified NCA-type doesn't exist for this title.
0x7D202	1001	Process does not have RomFs
0x7D402	1002	Title-id not found / savedata not found.
0x13B002	2520	Gamecard not inserted
0x171402	2954	Invalid gamecard handle.
0x196002	3248	Out of memory
0x196202	3249	Out of memory
0x1A4A02	3365	Out of memory
0x235E02	4527	NCA-path used with the wrong titleID.
0x250E02	4743	Corrupted NAX0 header.
0x251002	4744	Invalid NAX0 magicnum.
0x2EE202	6001	Wrong permissions
0x2EE602	6003	Path too long
0x2F5A02	6061	Offset outside storage
0x313802	6300	Operation not supported
0x320002	6400	Permission denied
0x326602	6451	Missing titlekey(?) required to mount content
0x3EA03	501	Invalid handle
0x3EE03	503	Invalid memory mirror
0xA05	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	7	TitleId not found
0x1805	12	Invalid StorageId
0xDC05	110	Gamecard not inserted
0x17C05	190	Gamecard not initialized
0x1F405	250	Sdcard not inserted
0x20805	260	Storage not mounted
0x408	2	Invalid program TitleID.
0x608	3	Invalid control StorageID.
0x808	4	Storage not found.
0xA08	5	Access denied?
0xE08	7	TitleID and StorageID mismatch?
0x409	2	Maximum processes loaded.
0x6609	51	Invalid memory state/permission
0x6A09	53	Invalid NRR
0xA209	81	Unaligned NRR address
0xA409	82	Bad NRR size
0xAA09	85	Bad NRR address
0x1A80A	212	Bad magic (expected 'SFCO')
0x20B	1	Size too big to fit to marshal.
0x11A0B	141	Went past maximum during marshalling.
0x1900B	200	Session doesn't support domains.
0x25A0B	301	Remote process is dead.
0x3D60B	491	IPC Query 1 failed.
0x20F	1	Pid not found
0x60F	3	Process has no pending events
0x410	2	Title-id not found
0xF010	120	Gamecard sysupdate not required
0x1F610	251	Unexpected StorageId
0x615	3	Max sessions
0xC15	6	Invalid name (all zeroes)
0x1015	8	Permission denied
0x416	2	Address space is full
0x616	3	NRO already loaded
0x816	4	Invalid NRO header values
0xC16	6	Bad NRR magic
0x1016	8	Reached max NRR count
0x1216	9	Unable to verify NRO hash or NRR signature
0x80216	1025	Address not page-aligned
0x80416	1026	Incorrect NRO size
0x80816	1028	NRO not loaded
0x80A16	1029	NRR not loaded
0x80C16	1030	Already initialized
0x80E16	1031	Not initialized
0x287C	20	Argument is NULL
0x2C7C	22	Argument is invalid
0x3C7C	30	Bad input buffer size
0x407C	32	Invalid input buffer
0x3CF089	7800	Unknown/invalid libcurl error.
0x3E8289-0x3F4089	8001-8096	libcurl error 1-96. Some of the libcurl errors in the error-table map to the above unknown-libcurl-error however.

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

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.