20.1.5

The Switch 20.1.5 system update was released on June 19, 2025 (UTC). This Switch update was released for the following regions: ALL.

Security flaws fixed: <fill this in manually later, see the updatedetails page from the ninupdates-report page(s) once available for now>.

Change-log

Official ALL change-log:

• General system stability improvements to enhance the user's experience.

System Titles

• The following titles were updated:
  • Sysmodules: account, ns, erpt, pctl, migration.
  • Applets: qlaunch.

NPDM changes (besides usual version-bump):

• migration: Service access: added eupld:c.

RomFs changes:

• SystemVersion: All files updated.

IPC Interface Changes

• Interface Changed: nn::account::migration::IDeviceMigrationUserImportRequest
  • Added: 27 - inbytes: 0x0, outbytes: 0x1
• Interface Changed: nn::account::migration::IDeviceMigrationUserImportRequest
  • Added: 27 - inbytes: 0x0, outbytes: 0x1
• Unknown Interface prev-version: 0x71001408F8 [ID = 0x29d8801c]
• Unknown Interface cur-version: 0x7100140A48 [ID = 0x29d8801c]
• Interface Changed: nn::migration::user::IService
  • Changed: 2250 - outinterfaces: ['0x71001408F8 [ID = 0x29d8801c]'] -> ['0x7100140A48 [ID = 0x29d8801c]'] (final state: inbytes: 0x18, inhandles: [1], outbytes: 0x0, outinterfaces: ['0x7100140A48 [ID = 0x29d8801c]'])
  • Changed: 2260 - outinterfaces: ['0x71001408F8 [ID = 0x29d8801c]'] -> ['0x7100140A48 [ID = 0x29d8801c]'] (final state: inbytes: 0x4, inhandles: [1], outbytes: 0x0, outinterfaces: ['0x7100140A48 [ID = 0x29d8801c]'])

ns

Besides IPC-related changes:

• Updated L_a0488, prev ver @ L_a0478.
  • Added a call to L_8f0a4 after the first func call.
  • Added a call to L_9c164.
• Updated L_a05e4, prev ver @ L_a0584.
  • Code was added for using L_8f0a4 in a loop.
  • Added a call to L_9c164.
• Updated L_ce23c, prev ver @ L_ce160.
  • Code was added at 0xce56c (prev ver 0xce48c): if (s32 sp44 <= 0x13) { L_8f0a4(...); <increment sp44> }
• Updated L_11d950, prev ver @ L_11d824.
  • When the first func call fails, this now calls L_8f0a4 twice before returning.
• Updated L_11ed70, prev ver @ L_11ebf4.
  • Added a call to L_8f0a4 after the first func call.
  • When L_99b70 returns success, this now calls L_9c164.
• Updated L_11f454, prev ver @ L_11f290.
  • At the start of this func a call to L_8f0a4 was added.
  • At the end of this func when successful, a call to L_9c164 was added.
• Updated L_14418c, prev ver @ L_143f68.
  • Changes are similar to L_ce23c, except the used field is s32 *(*(inx0+8)+8).
• Updated L_1446bc, prev ver @ L_14444c.
  • Added: *(inx0+8) = 0;
• Updated L_144c28, prev ver @ L_1449b4.
  • Clearing code was updated.
• Updated L_26bb28, prev ver @ L_26b818.
  • Minor changes?
• hid:sys IPC-client vfunc for cmd RegisterAppletResourceUserId:
  • This now uses an additional u8 param. Note that the latest hid-sysmodule (on NX) as of this version doesn't currently use this additional param.

erpt

Only a single instruction was changed (besides GNU build-id). Previously, when validating the CreateReportContext in Reporter::CreateReport, Nintendo checks that FieldId_ErrorCode is present, and that the field corresponding to FieldId_ErrorCode has type == FieldType_String (ResultFieldTypeMismatch if not) and that it has size <= 0xE (ResultArrayFieldTooLarge if not).

It now checks that the error code string is size <= 0xF instead of <= 0xE.

migration

Besides IPC related changes from updated SDK, etc:

• L_10a560 (prev ver L_10a540), L_10a690 (prev ver L_10a650), L_144ec4 (prev ver L_144dac), L_144f7c (prev ver L_144dac):
  • Added a call to L_d5294 (logging func).
• L_12700c updated, prev ver @ L_126fbc.
  • Now sets x21 to the L_15306c ret, instead of ignoring it. Code was added following that.
• Updated L_12b8d0, prev ver @ L_12b830.
  • At 0x12b950 (prev ver 0x12b8b0), added: if ((L_143510() & 1) == 0) L_1a8620(*(x23+104));
• Updated L_12d4c8, prev ver @ L_12d418.
  • Now calls L_153050, the ret&1 is passed as an additional param to L_2e4.
• Updated L_12f6b4, prev ver @ L_12f5e4.
  • Clearing code was updated.
• Updated L_12f9a0, prev ver @ L_12f8d0.
• Updated L_12fcd8, prev ver @ L_12fbb4.
• Updated L_144e60, prev ver @ L_144d10.
  • Removed some func calls.
• New func L_153000.
• New func L_153050.
  • Only called by L_12700c and L_12d4c8.
• New func L_1a8620.
  • Only called by L_12b8d0 and L_12fcd8.

• eupld:c SetAutoUpload is now used. This is now called by L_12f9a0 and L_1a8620.

See Also

System update report(s):

• [1]