[Error Code] error code SC90-01

[Guest]

my 1050 gave me an error code of SC90-01 and reserched it to being an ADU Abnormality
replaced front boards nothing swapped out adu unit with another working 1050 and same error pops up right away SC90-01

[Synthohol]

Re: error code SC90-01

check inside the connector in the back for a paper fragment