Another way to update Virus C and Rack XL OS
 

Hi there,

I own a virus rack XL, and after 3 days of madness, i finally was able to update my OS and presets to factory.

In fact, i already had the latest OS installed, but since i bought the unit second hand, all presets were messed up and changed by previous user, so i wanted to reset everything.

First i tried sounddiver, wich is a nice program to edit the presets, but was shit for sending midi and sysex to the virus. I installed then MIDIOX, wich is a very resourceful software, and the only one that was taking me somewhere.

After SEVERAL hours of trial and error, here's what worked:

1- Turned on the virus on receive mode

2 - In MIDIOX, go to "view / sysex", then in the new window go to "configure" and in both buffer sizes type in 4112, num 33, and in delay 100ms.

4 - click on the blue DIN connection icon and choose the midi out port of your interface.

5 - click on "playback midi" and from the OS folder, i loaded first the second.mid OS file, cause the first one only gave Checksum error, no matter how i tried, only cheksum error as soon as i played back the midi file. The unit will start to receive the data and you will see the numbers raising in the lcd screen, until it reaches 15, wich then will freeze up the unit. Don't freak out as i did, because all the buttons will be inactive, you won't be able even to turn off the unit.

6 - Now, from the OS in chunks folder, load up all the chunks from the first part, wich incredibly will start loading up, one by one. The weird thing is that when i tried to load up the first part chunks first, i only got checksum error.

7 - Voila!! After u load the last chunk, the lcd will ask you to store, press store and be happy forever.

I hope it helps someone with the same problem, cause from the access support didn't take me anywhere, they were blaming my midi interface (a novation sl mk2 and also a impact twin audio interface). Both equipments top quality, so i was pissed off i wasn't being able to do something so simple.