Based on what had been noted in the past, including posts by the late UpMan (whom we all still miss), the warranty will not be transferable, unless policy has been changed. (I suspect that is unlikely, but if that’s changed, that’s a change definitely in your best interests.)
As far as upgrades go, if the original owner added them, there’s nothing you need to do. They’re valid and usable by you or any other subsequent owner. If you purchase this, or any other previously owned scanner, you can check to see if the upgrades were entered (presuming the seller did not specify that either way). If you go into the scanner’s menu, and access the upgrades menu, select it and try to purchase it. If already in place, you’ll get a message that upgrade has already been done. If, instead, you’ll get a screen asking you to enter the upgrade’s license number, that would mean it had not been done, so if you want it, you would have to purchase it through your “My Uniden” listing.
The upgrade keys are specific to the individual scanner’s serial number. If it was upgraded already, ask the seller for the specific upgrade license number, which Uniden emails to the email address for the My Uniden’s related email address.
What I’m trying to get across is that if it was already upgraded, there’s no point in you purchasing one again, since you would not be able to enter the confirmation number you got via a purchase on your “My Uniden” account, and the one already purchased is in place and available for you to use. If, at some point, you (unfortunately) had to send it in for a repair, and as part of the repair, the serial board was replaced, Uniden, at times, does not apply the upgrade to the replacement, even though you might note the presence of the upgrade in your notes sent along with the scanner to be repaired. If you got it back, and the upgrade had not been applied as part of the repair, you would need to re-enter the key. That’s why you need the seller to provide the key (if it had been upgraded), or keep your receipt email, with the license key if you purchased it yourself. (The key for any upgrade that you purchase is listed on your My Uniden account page.)
If you end up buying a new one, then simply create your own “My Uniden” account and register the scanner there. Then, you’ll have the option to buy any of the upgrades that interest you. DMR is heavily used in my area, both by businesses as well as some agencies that went with DMR instead of the more expensive P25 trunked systems. NXDN is not nearly as widely used. At the time I added that upgrade, there was a group of smaller suburbs of interest to me that used NXDN. They have since moved to a large P25 Phase II trunked system, used by a large number of cities and counties in my area. I likely, at this time, would not purchase NXDN if I added another scanner. I already have that covered, and very little NXDN systems now of interest to me use that format. Before adding DMR and/or NXDN upgrades, check the systems used in your area to see if any that you want to monitor use one of those formats.
