Thanks a lot.
I got the printer without a SD Card inside the board.
So i would like to understand the hole procedure for duet boards first.

Thanks a lot.
Great and extremly fast support here.

Ok.
The way 1.21 to 2.05.1 don't works.

1.21 -> 2.01 -> 2.05.1 -> 3 works.

Ok.
The way 1.21 to 2.05.1 don't works.

1.21 -> 2.01 -> 2.05.1 -> 3 works.

First i tried update from 1.21 to 2.05.1 ... no way.
Nothing happened. Tried M997 S0, tried upload through webinterface.

I tried different versions of iap4e.bin which seems to be needed.

There is no error message ... but nothing happend.

Seems the only way to update a 1.21 is bossa.

Thanks a lot.
Great and extremly fast support here.

Ok.
What`s the prefered way for me?

Step by step or using bossa?

I tried to upgrade firmware but it doesn't work.

I followed this description:
https://docs.duet3d.com/User_manual/RepRapFirmware/Updating_firmware

I use "Fallback procedure #1".
I copied the files from firmware 3.4.0 to /sys folder.

M115 says that my board runs firmware 1.21.
M997 S0 got an error: iap4e.bin not found

I found this file in github in release 1.21 ... in 3.4.0 this file exists anymore.
I tried renaming Duet2_SDiap32_WiFiEth.bin to iap4e.bin.

M997 S0 got no error anymore ... but no update occurs.
M115 says again 1.21 is runnung.

I also tried copy the iap4e.bin from 1.21 to /sys. Same result.

Where is my error?

Thanks a lot.
I got the printer without a SD Card inside the board.
So i would like to understand the hole procedure for duet boards first.

Hello,
until now i never had a duet board in one of my printers.

Until yesterday i own a printer using a Duet 2 Wifi.
I try to update firmware and downloaded 3.4.

Manual says i have to use the right version for my board ... but there are many files.

Which is the correct filename?

Is Duet2CombinedFirmware.bin or Duet2Firmware_SBC.bin the correct one?
And Duet2_SDiap32_WiFiEth.bin ist the IAP?

Thanks a lot

Regards

Jürgen