Why do you still promote your NAND back-up method ?
It is not needed. If you make a copy of the calib directory, and it's associated back -up folder you are covered.
Anyhow , if you have an NAND back-up, you need expert knowledge to restore it IF you screw up completely.
be aware that Siglent can easy build in counter measures if invalid ADS files are loaded. They can still call it an 1.2.9.3a version, with modified OS system files.
I don't think it is a bold statement, If I counted correctly, there are now at least 3 brickt instruments, and the users that don't want to report here, are probably more....
where scripts from tv84 can brick your instrument
That's a bold statement. The only script suspicious is the NAND dump .ADS for the SSA, since then removed.
Although not sure if it is from the script...
So, for those that want to play around with calibs in the SSA, I suggest trying a telnet and issuing the NAND backup commands there before doing any changes.