Make sure you have the ch340 drivers installed https://sparks.gogo.co.nz/ch340.html
Also try swapping cables/ports to rule those out as potential culprits. Are the Power LEDs coming on (on the board)?
Make sure you have the ch340 drivers installed https://sparks.gogo.co.nz/ch340.html
Also try swapping cables/ports to rule those out as potential culprits. Are the Power LEDs coming on (on the board)?