Keep holding until you see a "Software Updating" screen or a fast-blinking LED.
Do not turn off the power or remove the USB drive until the blinking stops and the TV automatically reboots. Final Reset: hk.t.rt2851v09 firmware
firmware-version: 0.37
cat /proc/mtd dd if=/dev/mtd0 of=/tmp/backup.bin Keep holding until you see a "Software Updating"
The is a 4K UHD Smart TV motherboard commonly used in brands like KIVI, Sunwind, and BBK, utilizing an Android system with RTD2851ESA chipset (1.5G RAM + 8G EMMC). hk.t.rt2851v09 firmware