If the USB method fails, the eMMC chip must be desoldered and flashed with the firmware image (User and ExtCSD partitions) using a programmer. Official Resources

The file is a compressed archive containing firmware for the DNS 42AK9000 Smart TV . This specific firmware is intended for units using the 35019017 mainboard and is used for software restoration via USB or direct eMMC flashing. Technical Specifications & Components Mainboard: Konka 35019017 .

42-inch Full HD (1920x1080) LED panel (model 420B1LED6K / p/n: 72001350K ).

KPS-L090C2 (utilizing TEA1733 and 4N60L chips). Flashing & Recovery Process