Korg Radias - test mode - diagnostics - hot keys

[michu]

Can anybody help me understand what is the meaning of the following diagnostic hot key combinations for Korg Radias ?
I only know the frist one as I used it for firmware update. The rest I found by accident and briefly described in this topic.
As you can see Each initial combination works with [POWER ON] on button only. It would be nice if somebody can provide more professional description.

[MASTER FX ON] + [CURSOR <>^ keys] + [POWER ON] =
Verup firmware update mode with firmware revision display

[MASTER FX ON] + [PAGE -] + [PAGE +] + [POWER ON] =
another Verup firmware update mode with firmware revision display

[MASTER FX ON] + [UTILITY] + [POWER ON] =
CALIBRATION (keyboard calibration ?)

[MASTER FX ON] + [EDIT/YES] + [EXIT/NO] + [POWER ON] =
Blank LCD screen - have no idea what is this...

OSCILATOR 1
[OSC MOD] + [WAVE ^] + [POWER ON]=
(looks like test mode or some kind of synth diagnostic mode)

[OSC MOD] + [MOD SEQUENCER ON] + [POWER ON] =
(Another test diagnostic mode, more tests there, Audio, input, output, L and Main R test)

[OSC MOD] + [MOD SEQUENCER REC] + [POWER ON]=
(Firmware version info SYS, PCM, USR + Radias logo)
When you press DOWN + 16 = shortcut to Synth Title menu

OSCILATOR 2
[OSC MOD] + [WAVE ^] + [POWER ON]=
(keyboard test mode)

[Citizen Klaus]

Two years late, but I can answer one of these. This mode:

[MASTER FX ON] + [PAGE -] + [PAGE +] + [POWER ON] =
another Verup firmware update mode with firmware revision display

is used to update the OS over 5-pin MIDI DIN, instead of over USB. Useful if you have a unit where the Cursor Up/Left and Cursor Down/Right buttons don't work, as is the case with my unit.

And this:

OSCILATOR 1
[OSC MOD] + [WAVE ^] + [POWER ON]=
(looks like test mode or some kind of synth diagnostic mode)

is used to run the test sequence described in the service manual. Unfortunately, you can't complete the test sequence without a program that the manual refers to as "Jig."

[bigjoescientist]

Two years late, but I can answer one of these. This mode:

[MASTER FX ON] + [PAGE -] + [PAGE +] + [POWER ON] =
another Verup firmware update mode with firmware revision display

is used to update the OS over 5-pin MIDI DIN, instead of over USB. Useful if you have a unit where the Cursor Up/Left and Cursor Down/Right buttons don't work, as is the case with my unit.

And this:

OSCILATOR 1
[OSC MOD] + [WAVE ^] + [POWER ON]=
(looks like test mode or some kind of synth diagnostic mode)

is used to run the test sequence described in the service manual. Unfortunately, you can't complete the test sequence without a program that the manual refers to as "Jig."

I believe Citizen Klaus has a copy/paste error here. [MASTER FX ON] + [EDIT/YES] + [EXIT/NO] + [POWER ON] is used to update via MIDI

That said, THANKS for the info, because I thought my Radias was bricked due to an aborted OS update via USB... now seems to be updating over MIDI!!!