USB.
what you mean by still?
When I saw the problem it was not connected at all. Just power.
Sorry…ok…i understand now.
Not connected at all…wow…that is a strange problem when it just happens suddenly.
Hope it doesn’t happen to all users who upgrade… 
Could I damage MP-201 with just a MIDI data from my mac?
Never had something damaged with just midi data…only if you are updating something with a sysex or sort of file and it is abrupted in the middle of it…then there is a chance that something gets damaged.
But mostly this can be solved with re-writing the firmware in a way…guess that will also be in your case.
I hope so,but Im afraid that have to send it to moog factory or something like that. Anyone who has Amos s mail?
You can contact him at : amos (at) moogmusic (dot) com
Thank You man!
Yikes!
I never saw this happen at any point during development. But, I work on a PC… don’t know yet if that’s a factor.
So, unit was connected via USB… power to unit was turned on and off at various times… usb was unplugged and unit was turned on “by itself” and then nothing on the LCD?
This is mysterious and troubling. I am looking into it.
That sounds remarkably like the problem I had last year. See this thread:
http://www.moogmusic.com/forum/viewtopic.php?t=5814&highlight=screen
When I turn it on: Blank LCD and red switches or sometimes switches without light at all.
No it didnt power it up by itself! 
Or is this another thing in new firmware? 
Just finished some testing for this problem:
Power cycled the unit several times. Both by leaving it off for 15-20 secs and power cycling it on/off immediately several times. I even power cycled the unit while it was still booting. Unable to get unit to fail. (come up blank)
Re-flashed firmware several times (using three different Macs) - no errors.
I only tested this with a Mac, if anyone wants me to test with a PC, let me know and I will.
It should be noted that while I do not think this is related, I always flash any USB devices directly from the USB ports on the actual computer and never through any hubs. I have a lot of different gear in my studio and have found that it is often best to use USB ports directly on the computers for flashing firmware.
I also have not found any other issues as yet with the latest firmware.
Michael…
Michael: this is good news; thank you!
I also did some testing here, with many power cycles, massive MIDI data sent to MP201, many firmware updates… and no problems.
Vitja B: I’m pretty sure now that your MP-201 has a power problem; not a firmware problem. This is not great news for you and I will continue to work with you to make sure it’s fixed… but it’s great news for me and for all other customers, as this doesn’t seem to be a firmware problem of any kind.
I did find one or two bugs in my testing
If you are sending crazy excesses of MIDI data (like, triggering 4 envelope generators with 16th notes at 300BPM and sending CC data also), and you try to change presets rapidly while doing all this, the unit can re-start. Temporary solution: don’t be so silly as to do this, unless you are testing for failure like I was 
Other bug: It looks like the “press on/off footswitch to disable EG triggering from MIDI notes” seems not to work. I was sure I had tested this and found it working… but at least via USB, the EG will still fire in response to MIDI notes even when it is supposed to be disabled. Perhaps some other folks can test this one also.
-Amos
Yes that is good news!
But I dont understand that I was using it for 6 months now with no problem.
Well, some adapters are just crap!
I hope that I didnt burn something out.
I will mesure it,but not today. I have two gigs and a rehersal.
I hope to do this tomorrow.
Hi !I tested the 2.0 version of the MP201 .I miss the portamento CC5 and CC65 in the midi to cv mode and a mapping mode to send LFO at the same channel.Another idea is to trigger the steps of the LFO with midi note. I try this with my CP251 but the output of the S&H was to low.Regards .ebo
I hate to say it, but this is exactly what my MP-201 did when it died a few months back.. I had to send it in, but Moog replaced/fixed the unit.
One morning when I turned it on… nothing. Just a blank screen. Some times more red/orange lights came up that others, but always a blank screen.
Good luck to you and hoping for a speedy recovery!
DontBelievetheHype, do you think my MP has the same problem?
Then I should send it to moog factory…
But first I have to test the power adapter,like Amos suggested me.
I hope that it will not cost too much.
I am really broke…I just bought a Ibanez John Scofield signature 100.
And now I have few broken pices that will cost.
Damn.
UPDATE
Amos, I finally got off my ass and did a quick google search to find out where errors are logged on a Mac. So I believe I have found the error report that is the result of the incident which killed my MP-201. I will email it to you now. Hopefully this can shed some light on what happened in my case.
I hope to hear from you soon. I’m ready to order the USB debug adapter if it will help, or ship my MP-201 back to Moog if that is necessary.
Thanks.
-Mark
Hey everybody (Amos, hope you’re in here),
tried from my mac & pc to update my v1.01 MP-201 to v2 firmware w/ USB & regular MIDI.
How do I ship it to Moog/get an RA #?
Thanks,
psound74
Did you follow the upgrade instructions…it never stated anything concerning the use of MIDI to upgrade it that way..?
What was your error or problem…maybe it still can be solved without sending it to the factory…?