Samsung Galaxy Note 9 (S&D)

The Note 9 I received looked perfect & beautiful. When I tried to check its operation by inserting a SIM, I found that the SIM tray would not open. Using the enclosed SIM tray tool, as well as one from a Samsung phone purchased new, using as much pressure as I was comfortable applying, the SIM tray would not pop out. (Though I don't change SIMs every day, I've done enough to open one without any trouble, and I've done this on other Samsung phone before and since.) Once I realized the problem, I contacted Amazon customer service. After I followed their instructions, with same result, I arranged return of the device. Fortunately, the Amazon process for return is easy and painless. THE LESSON HERE IS: Always check the SIM tray on any phone that is new to you. As eSIMs are often used today, a stuck SIM tray may not be detected until it's too late for a return. When I closely examined the SIM tray, it appeared that some substance was swollen on one side of it, possibly indicating water damage. So, as I said: When you purchase a renewed phone, check that the SIM tray opens, even if you expect to use eSIM and not use the physical SIM.