Yamaha HTR 5063 - Manual (Page 4)

Firmware Update Procedure for RX-V467/RX-V567
Page.4 of 5
STEP5 CHECK UPDATED VERSION
Press and hold the [STRAIGHT] button on the front panel and keep it pressed
while you press the [STANDBY/ON] button. Once the front panel displays
"ADVANCED SETUP", release the [STRAIGHT] button. Then, press and hold
the [TONE CONTROL] button for about 3 seconds until front panel displays
“M:F018 66A8” .
F018: version of firmware
66A8: checksum
If your firmware version number and checksum don't match, retry from step 3.
Or try the
IN CASE OF ERROR method on the last page.
Turn off the power of AV receiver.
Congratulations!
You have completed the firmware update. Your AV receiver is ready for normal use.