I agree with you, I would not want to be without a backlit keyboard. 1. Yes, you could install the palmrest assembly with backlit keyboard. On your model, the entire palmrest assembly must be replaced, as it is a single part. Normally I would direct you to Parts-People, which is a reliable source of genuine Dell parts. However, they don't yet have parts for your model, perhaps because it is so new. 2. Your model does support a 2.5" drive. However, if you have a larger battery it may take up space that would be needed by a 2.5" drive, so check on that. If you're uncertain, ask Dell. An alternative is to replace your M.2 drive with one of larger capacity, though if you need just storage then I'd understand why you might prefer a cheaper hard drive option. 3. My understanding is that you won't invalidate your warranty simply by opening your case. However: Follow the disassembly and reassembly steps in Dell's Service Manual.Look on YouTube for videos showing disassembly of your model. But, be cautious with them, as some use steps or methods that are not appropriate. Use the videos to add to your understanding of what to do, but follow the steps in Dell's manual. Whenever touching components or working inside a computer, wear a grounded wrist strap, also called anti-static wrist strap, ESD wrist strap, or ground bracelet. It's a cheap and sensible precaution. Rest the laptop on an anti-static mat or at least a reasonable alternative such as corrugated cardboard.
Hello All,  Less than 2 months ago I bought an Inspiron 15 3525 and I do have a couple of questions. If somebody can help I would really appreciate it. #1 Is there any way to replace the non lit keyboard with on that lights up. When buying the laptop I though that would not be much of an issue but it turns out it is ! #2 Given the fact that the laptop is still under warranty, am I allowed to open it up ? Would that invalidate the warranty. The reason I want to open it up is to check if I can install a HDD along side the SDD because space is really limited.
Inspiron 15 3525 Backlit keyboard