These boards have been removed from mostly new TVS with broken screens and should work if properly installed. SONY XBR75X800G TV WIFI MODULE 1-458-998-12 / J20H088. Please verify that your board part number is the same as 1-458-998-12 / J20H088. The part number is the first number left of the /, or the sole number listed. Most often written in title as (part number / board number)
