This project has been replaced by sysDowngrader 3DS.

SafeSysUpdater

This is a fork of SafeSysUpdater which supports 2.1.0 downgrading, 9.2.0 downgrading, GPU based memchunkhax2 for stability increases + <=10.7 support, and fixes some of the outstanding issues of the original SafeSysUpdater.

PlaiSysUpdater Changes :

v05: Updated svchax
v04: Fixed 9.2.0J hashes (again)
v03: Fixed 9.2.0J hashes
v02: Updated svchax to support all versions
v01: Added 2.1.0 support, fixed 9.2.0J title mismatch, and merged pull request 13

SafeSysUpdater Changes

v09: add downgrade logs ("/SafeSys.log")
v08: fix JPN files path..
v07: finally fixed the input freeze... by removing this second confirmation screen.
v06: try to fix input freeze... again
v05: minor input fix
v04: added japan support (with bad title skipping)
v03: big improvement in hax success rate
v02: Add simulation mode to check your update files without actually downgrading
v01: Removed the config files, just put the ".3dsx" file somewhere and downgrade... and pray.
v01: Added a CIA version to downgrade from emunand so you don't need to try hard to get the hax to succeed (so it's just for testing/reporting bugs). Testing this will ensure the MD5 for each regions/models (only o3DS/n3DS USA/EUR for now) and downgrade process is correct/working. Thanks for reports !

Credits:

Cpasjuste for SafeSysUpdater
derrek for the initial memchunkhax2 flaw discovery
Steveice10 and all people who worked on memchunkhax2
TuxSH for the downgrade code (memchunkhax2 implementation)
This app was totally rewritted,but thank profi200 for the original app