OK, when you google the QKLX5M4 FCC ID, you get this link
http://www.guysoflidar.com/newescort.html and the thread we are reading right now......pretty slim info. This states it will probrably be the ID for a whole new detector, not a 'new' X50 per se.
I have a question though....If I go out and find that my software version is anything other than 'Rev. 5' , what are the notable differences? Is it a big deal? Is it worth upgrading?
I purchased this X50 because it was advertised as 'upgradable' , but I have yet to find any info on upgrading my X50 on the Escort website or elsewhere.........
I love my X50 but my only disappointment was that it is not equipped with the SWS (Safety Warning System) and believe if upgrades do exist this should be included in one of them.
Other than that..........HELLO EVERYONE....Seems Like You Have A Great Forum Here!!!