Whilst taking it apart is relatively easy, many of these enclosures have plastic clips which can break and can be a source of annoyance although they do not affect its function. Far better to have an agreement before the action than rely on the law to get your rights observed. I am hoping that if you can get an agreement with Seagate to open the case up, then that stops any arguments down the line. Perhaps Seagate can make arrangements with you that gets you what you want: they are a good Company'. Just to clarify my thoughts when I said, 'Strictly speaking opening it up should not void the warranty provided you have not done any further damage but that is difficult to prove and not worth the trouble. Parroting, versus verifying, is why the myth that rooting one's Android phone exists, as few ever bothered to actually read a device's warranty, which explicitly states what does void the warranty and system level access is not one of them (common sense should have prevailed with the question 'how could it be?').Unfortunately, warranty void information is too often parroted without verification of what a warranty says and whether the warranty terms are in line with the Magnusson-Moss Warranty Act The burden of proof, since 1975, squarely lies upon the issuer, not the consumer. Please read the Magnusson-Moss Warranty Act law, as any manufacturer who denies a warranty claim must be able to irrefutably prove whatever was done damaged a product before they deny a warranty claim.See my above reply, as 'Warranty Void if Opened' stickers/policies and terms are illegal & unenforceable (since 1975), with the FTC reaffirming this on 2018.04.11 If you open it up to get direct access to your hard drive (and have another hard drive to put the data on) you risk voiding your warranty.

How to run seagate backup plus drive