My controller doesn't turn on anymore
So i have this controller (i think it's 20-NS, worked on PC and Switch) and it was working fine, until i wanted to upgrade the firmware, so i tried and went to the instructions book and said "Press L3 and plug it in to a PC with USB cable" something like that I did that and the LEDs glowed one time, then they turned off and now the controller doesn't turn on.ñ Something to add is the fact that i didn't do anything more, just plugged to the computer like the instructions said I don't know what to do, i need any kind of help
So i have this controller (i think it's 20-NS, worked on PC and Switch) and it was working fine, until i wanted to upgrade the firmware, so i tried and went to the instructions book and said "Press L3 and plug it in to a PC with USB cable" something like that I did that and the LEDs glowed one time, then they turned off and now the controller doesn't turn on.ñ Something to add is the fact that i didn't do anything more, just plugged to the computer like the instructions said I don't know what to do, i need any kind of help