I want to add an m.2 ssd to my inspiron 7559, and was wondering how I can add it without warranty issues. Will installing an m.2 ssd to my system void the warranty of my laptop? If then how can i get it installed without any warranty issues. I bought my laptop in India. I did not find any document regarding the limitations of the warranty. Please help.
You won't void the warranty - all that's needed is to remove the base cover (exactly as if you were upgrading memory).
The M.2 drive needs to be SATA - NOT PCIe/NVMe. You'll also need a screw to secure the drive (which likely won't be installed in the system by default).
I too have the exact same system and am looking for an M.2 SSD for it. It appears to be M keyed. I noticed on another site that a B & M keyed SSD was used and recommended. I'm just wondering what the difference is, outside of where the notch is? And does it make a difference which key type is used. Basically i'm asking specifically which M.2 key type works in this system?