If you flashed the wrong firmware and now the TV is dead (no LED, no response), do not panic. The bootloader is usually intact unless you erased the chip incorrectly.
T.ms638.733 Firmware Official
Common issues and fixes
If you flashed the wrong firmware and now the TV is dead (no LED, no response), do not panic. The bootloader is usually intact unless you erased the chip incorrectly. t.ms638.733 firmware