wiz750sr firmware uploaded correctly, but no blue light


i uploaded firmware as flash programming as i done before, but now the blue light is not showing now. previously it was there when i uploaded the firmware, but it not now. when i upload the firmware, it shows a sudden bluelight and then no bluelight.

How to solve it???


Hi, @Rathesh1.

Did you use the ISP program when uploading firmware?
If you did not check the ‘Erase all code block’ option, the data area of memory may have been cleared.

First, connect the device using the USB type B cable and check the debug message.

and you can refer below link.

Thank you.