If you're looking for repair information online, the best place to start is the manufacturer's website. Here, you'll often find disassembly guides, repair tips, and even schematics all in one place. For the most comprehensive information, look for guides with still photos and explanatory text, similar to those found on iFixit or a hair iron repair firm. My goal is to share knowledge about the general procedure for repairing laptops in depth.
This includes being prepared for when a customer refuses a repair after discovering that the motherboard is in poor condition. With this in mind, I highly recommend Dell laptops as they are reliable and long-lasting. I have personally bought several Dell laptops for myself and others, and I have never regretted my decision. Although I don't have much experience repairing laptops, I did replace a Dell D600 motherboard for a family member when it wouldn't turn on and that seemed to solve the problem.Unfortunately, some manufacturers are not as open with their repair information.
For example, Toshiba forced Future Proof to remove its laptop repair guides from the Internet.