Did you rename the DG4000Update_Bootloader.GEL to DG4000Update.GEL?
Thanks PA0PBZ!
I did not realise that also the bootloader file had to be renamed.
The system information is now:
Software 00.01.09
FPGA 00.01.09
Hardware 01.01
Keyboard 06.01
Is the calibration still OK after the 1.09 upgrade?
If the calibration is back to defaults, your amplitude and offsets are way out.
I'm asking because if you upgrade the firmware on a DG1022, your calibration is lost, and loads factory defaults. I had this with my DG1022.
Just be aware that upgrading software on RIGOL generators it might loose your calibration!