Plug the USB into the TV while it's off, then hold the power button or plug it in to trigger the auto-update.
Before you download any .rar files, you must verify your TV's hardware to avoid "bricking" (permanently breaking) the unit: Download Micromax L40CD500 Software part1 rar
Often hosts multi-part RAR files for Micromax models. Soft4Led : A global database for TV board firmware. Common Installation Steps Plug the USB into the TV while it's