Hello,

several times tried to update latest firmware by net and got "1-21 error!" and "0-83 error!" errors.
Downloaded the firmware update from Pioneer unziped&placed the unzipped files on the thumb drive. updating process stopped at 9% and "1-21 error!" and "0-83 error!" errors.
right now i have only "update firmware by net or usb" message only.
whats the problem with this receiver?

thanks
alexsunny