i need help with my ch341b programmer because it’s power led just blinks once and turns off. i swear it was working when i got it.
Besides providing a “rich” post with the relevant information…
Have you ever used such tool, do you know the procedures and the required correct voltages to each operation…if you don’t, no surprise if it worked before and not now.
They are cheap but they can’t detect incorrect user operations…
Are there any fishy-looking components on the board?
Are fuses on the board a-ok?
Does Windows/Linux recognise that something was plugged in?
I suspect You may have bricked it with static electricity OR your USB-male connector on the board was not soldered properly (as on all cheap STlink programmers i encountered)