How to get in DFU mode without disconnecting

Hi, I noticed that I’m anable to get into the DFU mode by pressing RESET while holding the BOOT button. How is the DFU supposed to work when the Longan is permanently connected to power?

Update, solved it: The trick ist to press RESET twice quickly, hold it on the second press, then also press BOOT, then release RESET.

I’m just getting started with my Longan Nano board, and I’m not sure that I understand your original question. I’m repeatedly switching the board into DFU mode by pressing and holding BOOT, pressing and releasing RESET and then releasing BOOT. Then I can start the upload from PlatformIO.

This works fine while leaving the board connected to my laptop computer.