Regarding
Does it work if you select the other device letter?

The other device letter would be the boot partition of the RevPi. I got the same error trying to write to this volume. But after I added Win32DiskImage to the application exception list of the ransomware security function of Window10 I ...

I understand you, that is not an issue with the RevPi Core S in itself. But I think it should be of interest of Kunbus to have a working tutorial regarding flashing their devices with images.

What about this point, that I mentioned in my first post. Do you guys have any idea whether this approach ...

I'm actually selecting the second listed device/drive Letter. It is the same letter when the explorer window pops up because it registered a new device and asks me whether I want to repair it or proceed without doing nothing.

It sounds like, you guys didn't encouter this issue during your testing ...

RPIBOOT: build-date Jul 18 2022 version 20220718~085937 5a25e04b
Waiting for BCM2835/6/7/2711...
Loading embedded: bootcode4.bin
Sending bootcode.bin
Successful read 4 bytes
Waiting for BCM2835/6/7/2711...
Loading embedded: bootcode4.bin
Second stage boot server
Loading embedded: start4.elf
File ...

I'm pretty sure I upgraded all necessary software. I downloaded the most recent version of rpiboot as well as etcher (1.7.9). It is a known issue for the Etcher authors, that the current version of Etcher does not support cm4(s) https://github.com/balena-io/etcher/issues/3792.

Regarding the Win32 ...

I'm currently evaluating the RevPi Core S as replacement for RevPi Core 3(+) for our company and I'm failing to flash the image. I have installed the most recent version of rpiboot_setup.exe and I'm using Windows 10

My usual way with RevPi Core 3(+) was to use BalenaEtcher to flash the device with ...