Wait for a progress bar or "Software Updating" screen to appear, then release the button.

Press and hold the button on the TV itself (not the remote). While holding the button, plug the TV back in.

: The 35017861 firmware is designed for models with a 1920x1080 resolution panel. It fixes "boot loops" where the TV won't start past the loading screen.

: Once you extract the .rar files, copy the main firmware file (usually named MstarUpgrade.bin or similar) directly to the root of your USB drive—do not put it in a folder. The Flash Process : Turn off the TV and unplug it from the wall. Insert the USB drive into the TV's USB port.

Official firmware can be difficult to track down. You can check the KONKA Support Center for official regional releases, or specialized repair forums like Elektrotanya for service manuals and schematics.