To generate trial keys instead of official keys just type V as the first character instead of D.
E.g. VSAZ instead of DSAZ:
As you will note, I did indicate generating a trial key using the VSA9 option key. The oscilloscope said something to the effect of "trial license unavailable"
Having said that, I tried again this morning, but I used a different keygen and was able to install a trial license using VSA9 (as attempted before).
My latest iteration was as follows:
- Start with FW version 01.01.00.02
- Generate trial license using riglol and VSA9 option key
- Install trial license via SCPI
- Downgrade to FW version 00.01.00.05
- Rebooted machine to be met with a report that trial licenses expired
- Tried to install trial license via SCPI using previously generated value
- Unit said: "Used serial number"
- Generated new trial license using Rigol Keygen v2.0b1 and VSA9 option key (riglol appears to generate the same code every time due to random seed = 1)
- Install trial license via SCPI
- Reboot machine & confirm FW 00.01.00.05 and all trial licenses running
- Install FW version 01.01.00.02
- Reboot machine trial options did not expire as Bandgap experienced, checked BW (just in case) and still 200MHz scope
- Generated new permanent key using Riglol and DSA9 option key
- Check BW and scope is still a 200MHz machine
All firmware upgrades were done via safe method (cold boot, press power, press "help" before LEDs turn off, CH1 blinks indicating FW installation) and all key installs were done via SCPI (Ultra Sigma).
So the difference this time is that I was able to install trial keys, however, they did NOT expire when upgrading from FW 00.01.00.05 to 01.01.00.02 as Bandgap experienced. I will try the whole process again, but it would be nice to know what key generating tools were used in the successful method as well as to have the exact FW copies to use.