Inspiron 7577 or 7559 different spec according to product support web and support assist app - Dell Community
Guide] Dell Inspiron 15 7559 El Capitan Hackintosh (Dual Boot With Windows) | Page 26 | tonymacx86.com
Bios flashing (update) doesn't initialize until I press any key ( even though it is written "keyboar... - Dell Community
![Solved: Inspiron 15 7000 Series 7559 attempting bios update get "Running on an unsupported system" error - Dell Community Solved: Inspiron 15 7000 Series 7559 attempting bios update get "Running on an unsupported system" error - Dell Community](https://vjauj58549.i.lithium.com/community/s/legacyfs/online/en/communityserver.discussions.components.files/3518/7559.png)