I will have to look when I get back to the scanner
No problem the reason I'm asking is I have heard that the first batch of the line may be affected more by csj. Where the cut off is between the first and second batch I don't know but I've seen units with csj and the last numbers being 0005xx and I would think that would be the first batch of 2018. They were probably bought in May of 2018. My serial number ends with 0000441 and I bought it in May of 2018, I have not suffered reception problems from csj and the reception on my radio is perfect having programmed it correctly and adjusted filters. I do however have the rotary knob problem, which I had in my 536 also and my battery clip disintegrated in my hands just picking the radio up. I consider csj a time bomb that can go off at any time. By the way if it's a solder connection to your antenna that's pretty easy to figure out, put the BNC adapter on and see if you have any kind of play or if slightly manipulating it helps with reception.
Radio reference archives have all kinds of information on the SDS 100. Any kind of question you have just Google it or search radio reference and your questions will be answered. There's a good chance your radio is headed back to Uniden repair.
You can always call them and talk to them about it. You also want to register your radio with my uniden.com
The seller doesn't have to do anything just say you bought it privately with the approximate date and location, you will use the electronic serial number, not the one on the back of the radio. ESN can be found in Settings under scanner information. It's a different sequence but still has all the essential information I described above. I always recommend using the number on the back of the radio when you want the year of production so you don't have to power the radio up, especially when it doesn't power up LOL but for this purpose you will need the ESN.
Put the ESN in exactly as it reads, it will be followed by three numbers which is the check sum number.
Sorry this happened to you but as you read all of the threads on csj you'll get a better understanding. Should you be paying for this repair? No, but you will be. I have suggested that there be a repair campaign that would fix the problem for free no matter how old the radio is but I don't think that's going to happen.
Keep us posted, keep in mind what Ubbi said above, also hopefully someone else will chime in here and offer you some help too... as I was saying there's a lot of experts on reception issues that might have some fresh ideas... Bob.
