Hi,
I tried to flash my new CC2531 dongle via a Wemos D1 Mini with this tutorial, I followed.
The wiring is correct and the flash process went through successfully without any issues.
But after flashing the dongle stopped working. The onboard LED is off and nothing happens when I stick it into my computer. It also won't show up in Windows' device manager or in 'lsusb' under Linux.
So I tried flashing the stick again and it flashed successfully as well...but still, the dongle doesn't work.
Any ideas how to fix this?