There is a bug in FW 00.00.01.00.02 and earlier (
similar to DS4000 units) causing rewritting some areas in memory (trial options for example) when doing Self-Cal, saving setups/ref signal, AND also doing firmware update from the mormal operation (GUI).
This bug has been fixed in FW 00.00.01.00.05 (there are still some bugs, axes in XY mode, trial options get expired after Self-Cal,..), so I suggest anyone with FW 01.00.02 to update to latest version. BUT, it is very
IMPORTANT to do this update during
boot process, not from the normal operation from the menu. Insert USB stick with the firmware, power-on the unit and pres shortly HELP button (
immediately after POWER button before RIGOL logo appears). If it doesn't work, try again. If it still doesn't work, keep tying until it works. After you succeed, the SINGLE button will lights and update process will start shortly (CH1 LED blinks), after it's done, all LEDs light. Power-off, remove USB and power-on again.
Hint: To get full FW version go to trigger menu and set Edge, then press F7-F6-F7-Utility button combination quickly. Check additional info under Utility > System > System Info. To escape from this "special" mode, do again F7-F6-F7-Utility under trigger menu.
Rigol firmwares starting with 01.xx.. (like in Dave's video
01.00.01.09.00) are testing firmwares.