WTF, That's not good news to me. I just bought an IM508. What model and year Nissans did you try it out on? Maybe it doesn't list a stand alone option to retrieve PIN code on that make. Are you certain the IM508  won't retrieve the Nissan  PIN code as part of the process of adding an immobilizer key to a Nissan?

  The main reason I justified dropping a grand on  an IM 508 was because it is supposed to pull the PIN#s of Asian and Domestic cars and save you all the time consuming hassle involved  to obtain the PIN code I needed to enter on a Maxi Sys Elite in order to program it's key. I had to use BCM calculator app on phone and take trim off and try a bunch of numbers off modules.

  When you first got your new IM508, and first turned it on , were you at least able to test it out on a few vehicles or enter diagnostics with out connecting it to the internet and being  forced to register the unit immediately ? My Elite when new allowed for connecting up to 10 vehicles before having to actually register the device, but My new IM508 wouldn't allow me even one single access to diagnostics or try it out on anything without connecting to internet and registering the unit , so guess Turd  sit in it's  box for months unused unless I get some serious key programming that my Elite can't do without a PIN. I will be very disappointed if it tells me on Nissan to go under dash and  pull numbers off modules under dash and try entering this or or worse, a need to cut Mickey mouse ears in a module and solder jumper wires, LMAO 

 The IM508 immobilizer is supposed to retrieve many PIN codes that the MaxiSys platforms generally can't do . Diagnostics capability only = MK808 though.

I wanted to be able to try IM508 new out of the box a few times without having to register and update the product immediately , but unlike my Elite that let me use up to 10 times before registering , my IM 508 won't let me in diagnostics to scan a single vehicle.

  I am trying to find out if all the new IM508 are like that , or maybe someone was real careful to keep product looking as new , used it 10 times and returned it for a refund, since the original yellow security tape appeared to have been cut before.

 The thing boots up fine and checked serial number was never registered before, so I have no reason to believe it won't work if I wait to register device later when I finally get a newer high security type key my Elite can't do. . Since I only bought the IM 508 to supplement my MS908 Elite key programming, so I don't need it for day to day diagnostics.

 Autel don't tell you is that for some vehicle key programming requires an active update subscription and internet connection to Autel server to do keys of some cars, so after your 12 month update period is over , so is the ability to do the keys of those type of cars unless you keep update current. I don't know what cars require the internet connection and whether or not I will need to use my phone as a Hot Spot for the IM508 to do it's thing if I'm working mobile.