Unlike older DVD players, the Sharp Blu-ray BD-HP20U does need occasional firmware updates. This is similar to a driver on a computer system and informs the Sharp hardware how to function with newer televisions and Blu-ray discs. Because you do not have a direct Internet connection with the Sharp player, you need an Internet-based computer in order to update the system firmware.
Open an Internet browser and navigate to the Sharp website. (See References)
Choose "Customer Support," then "Product Downloads."
Set "Blu-ray Disc Players" as the product category, then "BD-HP24U" as the model number (this falls under the HP20U product line), then click "Firmware" as the download type and click "Search."
Click the download link to the most recent firmware update (listed at the top of the download list). This downloads the driver to your computer.
Double-click the downloaded file. This loads the zip extraction program you have on the computer (the file is downloaded as a .zip file, which your Blu-ray player will not read). Click "Extract" and the content of the firmware download is placed onto your desktop.
Connect the USB flash drive to your computer, then select "Start," "(My) Computer," and double-click the removable device icon. A window loads, representing the USB flash drive. Click-and-drag the extracted files into the open window, then close the window, right-click the removable device icon and choose "Eject." Disconnect the flash drive from the computer once the icon has disappeared.
Power on your Blu-ray player and plug the USB flash drive into the USB port on the rear of the device. The HP20U automatically uploads the firmware onto the system, updating itself. This process takes a few minutes to complete.