I think I've "bricked" my new DP832 by downgrading it to v1.06 and back to v1.08.
ADC cal doesn't work anymore, and the display meters are wrong.
Is there any way to recover from this do you think? Perhaps I did something wrong?
Does anyone know the ManualCal procedure? ![Broken! :-BROKE](https://www.eevblog.com/forum/Smileys/default/smiliey_scope_broke.gif.pagespeed.ce.z9RuKVWKjY.gif)
Thanks!
The problem is not the firmware up / downgrade.
There is a bug in the manual calibration.
Only volts and current ADC are affected.
The DAC's are ok.
Rigol knows the problem.
I'm waiting for a new firmware.
Write a mail to the Rigol support.
Is there more to it than this I wonder?
Rigol say v1.08 is the latest version.
I find it strange that in addition to the ADC problem
that the options are lost after downgrade/upgrade,
including the trial minutes that I had.
I would like to remove the options and try again,
but ":SYSTem:OPTion:UNINSTall" doesn't work in
Ultra Sigma, nor ":Cal:Start 2012,CH1" either
![Banging Head |O](https://www.eevblog.com/forum/Smileys/default/bangheadonwall.gif.pagespeed.ce.8iLbFYV4Bc.gif)