I am stuck on Felucca 1.6.1 now.

[plaanb]

After trying around here with Felucca 1.6.1 I tried to go for other M-Wave FM1 custom firmwares too, but it seems that on this verison I am stuck with failure code -15. It seems everything works with Felucca- based firmwares (Sloop and others), but if I try to install stock vesrion 15 I get Failed -15
Other than that everything seems to work.

[rafrafek]

Have you tried this?

https://open.m-vave.com/fm1-workbench

1. Go to the Device update tab
2. Expand Recovery & force update
3. Select Force flash (migrate from other firmware)
4. Select I have backed up the sounds, projects and samples I want to keep
5. Click Connect device
6. Click Restore original V15

[plaanb]

Yes, I have tried! The result then is „Failed -5“ Same goes for other non-Felucca firmwares.

[rafrafek]

Try V14 and V15 from this page:

https://www.m-vave.com/product?id=fm-1

Also try the official M-UPGRADE software for Windows/MacOS.

[plaanb]

As I said before - I tried all possible and impossible variants:
Official V15 web install with FM-1.fwsc, Official Workbench, Chrome, Edge, PC and Mac
Official M-UPGRADE both on PC and Mac. Third party installers (Baudgirl) - always the result is same - FAILED either -15 or -5
But when I try other Felucca- based firmware (Sloop) - everything installs great. Same with going back to Felucca.
I have feeling this is 1.6.1 version-based issue since two weeks back (when 1.6 was last released) I could install different versions without issues.
If there would be possibility to flash older Felucca (1.6 for example) I would try that, but I cannot find a way to do that...

[plaanb]

Well - I did not notice that when the official workbench installer v15 fails, it offers to install workbench v14. That worked!
After that I flashed official V15 and tried other firmwares (Baudgirl) and back to official V15. Like charm!
Now I installed Felucca v1.6.1 and voila - stuck in good old "FAILED -5 and -15" again!
There is definately some issue between Felucca and Official V15.
At least I know the way back now!

[kurogedelic]

Thanks for the report, and for sharing the way back!

[kurogedelic]

Felucca 1.7.0 no longer refuses M-VAVE's V15 package, so you can go back with M-VAVE's own updater now. Going back can erase some of Felucca's saved data, so the web installer's Return to official V15, which backs up first, is the safer way.