Hardware FBI Error - 0xC960454C

[MatthewBordacs]

hi guys,
I am recieving a FBI errror on CIA's which are random as they intall fine on my other 3ds.

does anybody know what this error means?
Failed to install CIA file
result code: 0xC960454C
Level: status (25)
summary: internal (11)
Module: FS (17)
Desc: Bus: Stop bit error (332)

Thanks,

Matt