Pro Tip : Always enable 2FA and update your firmware monthly to stay ahead of cyber threats.
If you can share (device name, vendor, file size, first few bytes in hex, or error messages from the device), I will rewrite the paper with correct details. Otherwise, the above template is the best I can provide.
: Some boards detect the file and start flashing immediately. You will see the standby LED (usually red/blue) blinking rapidly.