I bought 16 of the Exos X20 from Newegg a few weeks ago. I also had the issue of a few months missing from the warranty. I reached out to Seagate support via chat and I provided them with proof of purchase and serial numbers. They corrected the warranty within minutes and I was able to verify the 5 year warranty on the Seagate website. I guess YMMV.
I bought 16 of the Exos X20 from Newegg a few weeks ago. I also had the issue of a few months missing from the warranty. I reached out to Seagate support via chat and I provided them with proof of purchase and serial numbers. They corrected the warranty within minutes and I was able to verify the 5 year warranty on the Seagate website. I guess YMMV.