My MnM MKII +Drive has frozen 
it will not get past the screen showing the OS version , currently , 1.32B there is also an ‘H’ in left corner.
I contacted support last week they were very prompt and suggested trying reloading the OS which I tried , but no luck , they did tell me if that didn’t work it would have to go to their workshops.
So i thought of trying another slightly earlier version of the OS , possibly 1.31 or so as a last ditch attempt before having to send it away.
Has anyone got a link to an earlier version of the OS please ?
David
Try with this link:
On the page you should find MnM OS 1.10c. Downgrade, then work for a while in this OS, and try upgrading. Hope this helps!
Many thanks for the link 
tried it, the downgrade worked , but the MnM still freezes at the screen showing the OS number ,
looks like it will have to go to Elektron ,
I had a similar problem with mine once, I was able to fix it myself but it involved opening / dissasembling the monomachine (and hence voiding your warranty, and potentially bricking or damaging your mnm if you are clumsy taking it apart).
Wasn’t an issue for me as mine was already out of warranty.
Pm me for more details if you like, and good luck with the repair