Correct firmware filename for Duet 2 WiFi

LordMM

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

jay_s_uk

@lordmm if you're updating to 3.4 it's best to just use the combined zip file thats offered.
but if you don't want to do that Duet2CombinedFirmware.bin is the correct firmware and Duet2_SDiap32_WiFiEth.bin is the correct IAP

LordMM

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.

jay_s_uk

@lordmm this is a good page for understanding the sd card structure https://docs.duet3d.com/en/User_manual/RepRapFirmware/SD_card

droftarts

I've added a table to the firmware update page to show current firmware file names for each Duet board: https://docs.duet3d.com/en/User_manual/RepRapFirmware/Updating_firmware#firmware-file-naming

Ian

LordMM

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?

jay_s_uk

@lordmm you can't go from 1.21 to 3.4 directly without using bossa.
You need to go from 1.21 to 2.05.1 then to 3.0 and finally to 3.4

LordMM

Ok.
What`s the prefered way for me?

Step by step or using bossa?

jay_s_uk

@lordmm as long as you've got a proper USB cable that provides both data and power (which you must have if you're using YAT to communicate with the duet), then go bossa.

LordMM

Thanks a lot.
Great and extremly fast support here.

LordMM

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.

LordMM

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

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

droftarts

@lordmm If you're on 1.21, you need to use the iap4e.bin from 1.21: https://github.com/Duet3D/RepRapFirmware/releases/tag/1.21
I recently tested updating from old firmware versions. You should be able to update from 1.21 to 2.05.1, then 3.0, then to 3.4. See https://forum.duet3d.com/post/268028

I also tested updating from 1.21 directly to 3.0, which also worked. Just make sure you have the correct 1.21 iap4e.bin version in the sys folder of the SD card.

Ian