until the Center Icon starts to blink, then release the button.
from the AC outlet and insert the USB stick into the service port on the side of the TV.
while the icon blinks steadily; the TV will power on automatically once finished.
For the , firmware or "flash dump" files are typically used by technicians to repair TVs with corrupted software or "brick" issues. While official "rar" downloads are rarely provided directly on public consumer pages, you can find the necessary software and service documentation through specialized engineering and community databases. Flash Dump & Software Resources
: Operation manuals and general download information are available on the Sharp Global Support page .