: Wait for the indicator to flash rapidly (often alternating colors). Unplug the TV, remove the USB drive, and wait a few minutes before turning it back on. Important Notes
If you have successfully downloaded all parts and extracted the .pkg file (usually named allupgrade_5522_8G_1G_ref56.pkg ), follow these steps provided by KenotronTV : : Format a USB flash drive to FAT32 . : Wait for the indicator to flash rapidly
on the TV panel, then plug the power cord back in. on the TV panel, then plug the power cord back in
Release the button when the indicator light starts flashing, signaling the update has started. Start the Update : Unplug the TV from the power outlet
: Place the extracted firmware file directly into the root of the USB drive (not inside a folder). Start the Update : Unplug the TV from the power outlet. Insert the USB drive into the TV's USB port.
To download the firmware for the Polarline 50PU11TC (often listed as 50PU11TC-SM
), you will typically find it hosted on specialized technical forums like KenotronTV or Remont-Aud. These files are frequently split into multiple parts (like "part04.rar") due to file size limits on these platforms.