The other day got 3 "Self Cal" messages from my RX65 Pro in the space of 10 minutes. I also noticed the writing on the display would disappear for 1/4 of a sec and back on a few times and then the dreaded "SERVICE REQUIRED" alert. ****!!!!!
I couldn't be bothered sending it to Bel. So I opened it up and ran my SMD hot air gun over all chips on circuit board. Just enough heat to get solder molten. Also I removeded the PATENT sticker found INSIDE the chamber of the detector near sensors. Sticker was about 2.3cm x 2.3cm. Strange??? Anyways, I know not all of you will be crazy enough to do the above if your unit is still under waranty. Mine is out, and I have spare RX65 Pro V6.1.
RESULT so far - 1 Day of driving, picks up K as usual
X as usual, SWS as usual. Didn't run into a Ka yet or Laser. We don't have POP or Ku here in Oz yet?
No more screen flicker at all. NO MORE SELF CAL, NO MORE SERVICE REQUIRED.
*** Hope this helps others with faulty out of warranty RD