Somehow my R3 has quit receiving radar alerts. It came with version 1.26 and ran well. I went to 1.30 and 1.31 and it ran very well. I went to 1.46 and did not get a chance to use it at this version and backed down to 1.37 (after reading all the horror stories). With the downgrade to 1.37 it stopped receiving alerts. I then went back to 1.31 and it still did not give me alerts. I went back to 1.46 and I do not get alerts. I've been testing alerts by driving by operational speed traps with multiple radar units in operation and get nothing. I've also been driving by the Walmart doors for K band alerts and get nothing. I did a factory reset after each version change. I bought it in August of 2017 so the warranty is over. Anything I should try before I send it back for an $81.95 repair?