If you cannot find the exact software for the Intex LED4301, look for firmware for the Mainboard ID instead. Intex uses Vestel or generic Chinese boards; the Intex software is just a "skin." Any firmware for that specific board will make the TV work, though you might lose the "Intex" boot logo.
Before downloading anything, you must open the back cover of your TV or access the Service Menu to find the exact board version. intex led4301 fhd smt software download better