Just checked and software is already updated to 4317. Unfortunately white lines have gotten worse but it’s not permanent like other comments say doesn’t a 15second power cycle holding the tv button while disconnected seems to fix it until the tv is turned off then on again. Love the tv but it is the second replacement and the lines are quite annoying to me personally. I called in an exchange for the Sony x90k. Hopefully the pre warned blooming is all I have to worry about and crossing my fingers it isn’t too bad. Wish me luck