Sketch uploads still failing even after burning the latest bootloader

Hello! I am having trouble uploading sketches to my new Giga R1 WiFi board. I was able to complete the "Burn the bootloader" instructions found here:

Burn

During the process, I had to manually install the drivers using the steps at the bottom. Afterwards, it shows up like this (before I flashed it), which I think is correct:
COM3

Unfortunately, in this mode, it doesn’t show up in IDE. If I reboot, it shows up in IDE on port 3, but reports no DFU found when I upload a sketch. If I double press RST it shows up as port 4 and still reports no DFU found. In this last state, I see a driver issue – it looks like this:
COM4

Does anyone know how to resolve this so I can start using the board?

If the bootloader process was done correctly and successfully, did you "Disconnect and reconnect GIGA R1 WiFi to your computer" as suggested before trying to upload a sketch? You also need to select the board and the associated port before uploading a sketch (use Blink LED sketch from IDE examples to test first) to it.

For the DFU issue, follow the recommendation on " Troubleshooting" section, if done correctly should resolve the issue (unless your machine has driver issues).

At the end of my post, I mentioned a driver issue. After a lot of trial and error over the last few hours, I downgraded my board manager from version 4.1.3 to 4.1.1 and received a compatible driver. Everything works now on the older board version.

Hi @bradm124.

The drivers haven't changed between those two versions. Boards Manager automatically installs the drivers whenever you install a platform, which includes updating or downgrading. However, you must authorize the driver installation via the Windows User Account Control (UAC) dialog that appears during the installation. Maybe you didn't approve the installation when you first installed the "Arduino Mbed OS Giga Boards" platform?

Since there is no obvious reason why it is necessary to use the outdated 4.1.1, I recommend updating the platform back to 4.1.3 and then checking to see whether the uploads continue to work with that version installed. This will allow you to benefit from the ongoing development work on the platform rather than being unnecessarily stuck on 4.1.1.

I approved all UAC prompts that I received during the initial setup, and I didn't get a new one when I downgraded. However, sketches are still uploading successfully after upgrading to 4.1.3, so I will leave it as long as it works. Thanks.

You are welcome. I'm glad it is working with 4.1.3 as well.

Regards,
Per