CMU200 serial number

[RF_fanatic]

Does anyone know where the serial number is defined?

I have one with serial number 000000 so obviously it losts it's orginal serial number, it happend  after an unsuccesfull firmware update board change.

I checked the swop and identity file but no clue at this moment.

Anyone help would be appreciated

[Nusa]

See if you can spot any resistor clusters that differ in values between two mainboards. That could be a serial number. Much harder to spot than jumper pads. I remember Dave found some option pins done that way on a Keysight scope teardown a couple months back.

[Bicurico]

I m on my phone so here is a short quick reply.

Try booting into the service menu and run the maintenance.

Regards,
Vitor

[RF_fanatic]

Gentle BUMP

Stil got serial 000000

Doe anyone know how to change it back into the original number?

[Qw3rtzuiop]

@RF_fanatic
Any success? I suspect that the serial number is stored on the FMR somewhere. Its not stored on the HDD.