The OP sysupdater installs NATIVE_FIRM first before CIA files, which according to some is brick-prone.I am not exactly sure and I believe they both are the same however I know for sure that the one I quoted is the Steveice one and I am not sure about OP so I used the one I quoted when downgrading and it worked first try.
Stevice10's Dropbox Sysupdater installs NATIVE FIRM 'after' all cias, which they say is 'safer' or yields more success. Also, this sysupdater is more consistent.
Last edited by WaffleWafer,