Notifications
Clear all

MMU2 firmware verify error  

  RSS
Juan Puchol
(@juan-puchol)
Active Member
MMU2 firmware verify error

I can't flash my MMU2. Always finish with an error message:

avrdude: verifying ...
avrdude: verification error, first mismatch at byte 0x0980
0xff != 0x1f
avrdude: verification error; content mismatch

avrdude: safemode: hfuse reads as D8
avrdude: safemode: efuse reads as CB
avrdude: safemode: Fuses OK (E:CB, H:D8, L:FF)

avrdude done. Thank you.

It doesn't matter which firmware I use, all of them fail. Now my MMU2 unit is unsuable.
I have tried different cables, to reboot PC and printer, full reset printer, now I have no ideas.

What can I do?

Posted : 05/01/2019 12:14 pm
DaniAngel
(@daniangel)
Active Member
RE: MMU2 firmware verify error

I have a similar error when flashing mmu2s firmware.  Did you ever find a resolution to your issue?

 

My post....

This post was modified 5 years ago 2 times by DaniAngel
Posted : 23/12/2019 8:52 pm
MechLink
(@mechlink)
Estimable Member
RE: MMU2 firmware verify error

I would contact Prusa supports and link this page to them

See my stuff at
https://www.printables.com/@MechLink
https://www.myminifactory.com/users/MechLink

Posted : 28/12/2019 3:47 am
DaniAngel
(@daniangel)
Active Member
RE: MMU2 firmware verify error

Update:  Got some live chat tech support today and Prusa is shipping me another MMU2S electronics board and cable...Hopefull this resolves the verification error when flashing...

Posted : 03/01/2020 11:55 pm
Share: