HP6400 48AL User(Help me)

[???_66]

It is sorry.
I not to be able English well.
Break it will speak

I'm user for HP6400 48AL
and before some one,
update firmware(ns00 -> 9608)

This day after
The diagnosis result which leads HP Library Tape Tools(version2.7sr5)
With afterwords it shows a same message.
________________________________________________________________________________
The test function encountered an unrecoverable error condition, the test failed.
-- SCSIScript:buidin function error(Line 244, Error GetByte: Unknown buffer Fault)
________________________________________________________________________________

so,It receives old version firmware(ns01),
It attempted to downgrade firmware again
Mismatch firmware error

Entrusting it gives a solution please.

Maybe The person who is HP6400 48AL firmware(ns00 version and flash program that don't check id)

To send with here(hckim@anamit.com)