I am ready to buy a BCD536HP, but before I do, I want to know (if it can be known) whether buying on Amazon will net me a fresh new radio (that won't have an RTC issue or dim display or headphone jack, etc), and not something that someone has had sitting around for 2 years. If not Amazon, where do people recommend I buy at a similar price? Thank you in advance.
I doubt anyone can answer your question. Only Uniden knows the serial number range of these models where fixes have been applied and they are not releasing that info.
On the other hand, if you can get the serial number of the radio you will actually get and find a way to post it here, someone will know if it is a recent serial number or not. That does not mean it has had all fixes applied though.
Not long ago, Amazon had an internal issue with several products including Uniden scanners. People were receiving scanners in a 4 or 536 box but the radio in the box was 10 or more years old and of course an obsolete model!
I'm pretty sure Amazon figured that out and fixed the issue but you are still going to not know if yours will have all fixes applied.
I did order a new 536HP from Amazon when people were getting ripped off with old models and the one I received was brand new and did have all fixes applied.
I did purchase it from Amazon LLC and not any of their approved vendors if that helps. That was several months ago now.
All I could do was keep my fingers crossed but as soon as I powered it up, I could see the slightly different screen color indicating the backlights had been changed.
The internal RTC battery is also different looking than my original 536 bought when they were first released.
I'd say if is safe to assume the headphone jack issue will have been fixed if buying new but the RTC issue and backlight failures may still exist.
Somewhere here is a post where you can see the old and new backlight color change but it is so close that it may not be easy to tell without having an old model to compare with by eye.
If you do find a vendor that will give you the serial number, you can probably safely post it here by leaving off the last three digits or so as the major revision changes are earlier in the serial number.
I think somewhere in the latest revision is also the range where all known fixes were applied but nobody knows the cutoff range and beginning of the range where all the fixes should have been done.
There are probably some sent back in by vendors to Uniden where all fixes have been applied before they were ever sold. Those of course may have an older revision level even though they had all the fixes applied by Uniden.
This question has been asked several times here in the Uniden forums but any answer is more or less just speculation.
Some were told that HRO only sells the latest revision models only to get one where the backlight had not been replaced when they did order it.
Jeff at HamStation may be able to give you an accurate answer as he seems to deal with several here more on a personal level. I've never bought from him though so can't say for sure.
edit: I do know someone who was told that HRO only sold the models with all fixes applied so they could be assured they were getting one all fixed and brand new. This was also the same time that people were getting oddball models from Amazon in a 536HP box.
In this case, the buyer bought one from HRO only to discover the only fix applied was the headphone jack issue.
It's possible only one HRO store made the claim they only had the fixed models as they do have several outlets but usually ship from the store nearest you. I've purchased several items from HRO over the years and never had any issues but I also did not need to know if I was getting something with all bugs worked out or not.
At this time in the game, it's probably on your side that you will get one with the fixes applied but it's not a guarantee.
And that train of thought is probably more true with larger well known vendors as mentioned by hiegtx.
I do think he may be wrong that Amazon sells everything from the same bin though. I've bought goods through Amazon approved vendors before and they shipped from all over the country instead of the state that most Amazon LLC items ship from.
Amazon does have shipping warehouses all over the country though to speed up shipping times and lower costs so even genuine Amazon sold items could ship from several states these days.