Hey guys, my friend just purchased a new X50 red. I asked if i could open it up (and after he said no) I did it anyway. I read the numbers on his detector, and it ends w/ a letter "L". Mine, when I opened it, ends with a letter "K". I'm guessing since i bought mine a year ago, mine was produced a while back. I was hoping the GOL tested radar could tell us what his last letter was on the inside of the X50? Sethy, I remember you had a post regarding POP not falsing as much on a newer X50... you should open them up and see the #'s listed inside, and the letter at the end. I'm guessing Belscort is changing their newer X50 radar detectors w/ a different software or maybe even a hardware tweak. Anyway, If you guys want, open up your X50's and list on this post the letter at the end of the numbers. It looks like... XXXXXL or XXXXXK or something liek that. K later guys.