The router firmware is placed in the flash memory. You can smoothly update firmware from proceeding to the administration menu on the advanced tab. Here, you will see the message at the top of Netgear screen where you will find the new firmware. To know about the steps to update Netgear WNDR4500 firmware, here’s what you have to do. Start by choosing advanced > administration > router update. Now, tap to check and see whether router finds new firmware information. Lastly, tap to yes to smoothly update and locate the firmware that you have downloaded recently. When the router firmware update is completed, you can restart your router.