Best answer: You'll have the best luck finding a replacement Inspiron 15 7570 or 7580 keyboard at eBay. There are different languages to choose from, and you should be able to find an option with free shipping, 30-day returns, and a warranty in case the keyboard is faulty out of the box.
Why replace a keyboard?
If a single key is malfunctioning on your Inspiron 15 7000 — whether it's stuck, lost, or not responding promptly to presses — you might be able to get away with replacing a keycap. With care, you should be able to lift off the old keycap, verify the clip points are still working, and put on a new one that you purchased from a retailer. Individual keys usually cost less than $10, but can be tougher to find.
While replacing single keys is certainly possible, you might find that a new keycap didn't take care of the problem. You no doubt have your own reasons for replacing the entire keyboard on your laptop, so we won't ask. Since you can get an entirely new keyboard for about $30, it might be worth the extra time it takes to replace the whole thing.
How hard is it to replace the keyboard?
Replacing the keyboard in the Inspiron 15 7580 or 7570 will take more time than other similar tasks since you must remove most of the other hardware in order to get to the keyboard. You must remove the back panel, battery, solid-state drive (SSD), hard-disk drive (HDD), power jack, CMOS battery, Wi-Fi card, display assembly, heatsink, fan, motherboard, and more. Yes, you're pretty much disassembling your entire device here before getting to the keyboard bracket since it sits at the bottom of the overturned laptop.
If you're not comfortable with disassembling your laptop, it's probably wise not to take the plunge. However, it's certainly doable, and taking plenty of before pictures will ensure you can get everything put back together once the new keyboard is in place. The whole process should realistically take an hour; there's no need to rush as it's best to be sure you're putting everything together properly.
Before beginning, make a backup of your PC in case something goes irreversibly wrong. Likewise, use a proper PC toolkit for the job, including anti-static strap or mat, screwdrivers, tweezers, and extractors.
Get tinkering and replace the keyboard on your laptop
It will take some time and might seem a bit daunting, but you can replace the entire keyboard on your Dell Inspiron 7580 or 7570 for about $30. Be sure to make a backup of your PC before beginning, and consider splurging on a PC toolkit so that you have the right hardware for the job.
A cheap replacement keyboard in multiple languages.
There are a number of options to choose from at eBay depending on your language of choice. These generic keyboards come unopened from the factory, have a 30-day return policy, free international shipping, and a 180-day warranty.
A great budget 15-inch laptop.
Available with a 15.6-inch FHD display, 8th Gen Intel Core processors, NVIDIA MX130 discrete graphics, and plenty of ports, you might think this laptop costs a lot more than it really does.
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