Anyone who has worked in Computer Repair is aware that laptops are a vastly different species from desktop computers. Even though they share several similar concepts, repairing their hardware is a different craft. This post contains some laptop-specific techniques that I utilized.
When I began my career in computer repair, I was most interested in laptops. I believe that it would be beneficial to enter this specialized industry. Therefore, I purchased several broken/spare/repaired laptops on eBay to practice disassembling them and inspecting their inner workings.
Each laptop model can have its unique issues, although the main principle of taking them apart is typically relatively similar. Tiny screws concealed beneath rubber bumpers, cables that must be routed via a hole in the motherboard, etc.
A fancy toolbox is unnecessary. Really. I am aware that there are fancy toolkits available, but for 95 percent of the job you will perform on computers, only a few simple tools will suffice. Spend your money on excellent, well-made, and comfortable tools, especially because you won't need many. You'll need a small cross head screwdriver, a set of precision/jewelers screwdrivers, and perhaps a screw-grabbing tool — handy for retrieving one of those misplaced screws. When performing complicated repairs such as DC jack replacement, you'll need a good soldering iron, and a hot-air rework station will save you so much time and effort, although they can be rather expensive. Visit the Manufacturer's Site. You may be amazed at how frequently a manufacturer's website contains a comprehensive disassembly guide. For instance, Dell excels in providing such services. Navigate to the Support section of the website, locate your laptop model, and search for any available Service Manuals.
Use damaged laptops for practice. As I previously stated, broken computers can be purchased on eBay for a low price. Occasionally, there are laptops that were unable to be repaired and are being sold for components. Still, you will find these to be valuable. Become accustomed to the sequence of disassembly. It is preferable to test these things and make mistakes on cheap, discarded computers as opposed to the laptops of your customers.
There is an unremoved screw if you encounter resistance. When you're accustomed to disassembling laptops, you'll know how much force you can apply before you realize you've overlooked a screw. Possibly it is concealed by a sticker or on the opposite side of the laptop. But if you're trying to pull something apart and it won't budge, or if you can see that it's being held tightly in one spot, there's another screw...
Perform your homework. If you repair laptops, you are part of a community that enjoys mutual aid and knowledge sharing. Almost all questions can be answered by conducting a fast Google search. Alternatively, you may find a solution on a number of websites or forums. Compare this to, say, the TV repair industry, where it is nearly hard to learn their trade secrets.
I will describe frequent cases of failure and recommend troubleshooting solutions. The laptop shuts down when the AC adapter is unplugged. While the laptop is connected to an AC adapter, hovering the cursor over the battery symbol displays the remaining charge and the word "charging." If available, the power meter utility also indicates that the battery is connected and charging. However, as soon as the AC adapter is unplugged, the laptop goes down totally.
Possible difficulties include improper battery installation. Attempt to reconnect it. The battery connections have become soiled or corroded, and the battery is no longer forming a strong connection with the motherboard. Use electrical contact cleaner to clean the contacts. If reconnecting the battery has no effect, it is likely defective and must be replaced. If you replaced the battery but the problem persists, this is a problem with the motherboard. The charging circuit on the motherboard has apparently failed. In this situation, the entire motherboard must be replaced (or repaired on the component level).
The battery is not being detected by the laptop. There is a red cross on the icon for the battery. When the cursor is placed over the battery icon, the message "no battery detected" appears. Possible issues: 1. The battery is likely defective. You have an excellent possibility of resolving this issue by replacing it. If replacing the battery has no effect, the problem lies with the motherboard. The motherboard need replacement (or repaired on component level).
After reaching a certain critical threshold, the battery discharges extremely rapidly. The battery is detected by the laptop and charged to full capacity. When you unplug the AC adapter, it takes typical time for the battery to discharge to a critical point (let's say 80 percent), but then it discharges rapidly to zero percent.
Possible issues: The battery has failed. It must be replaced with a brand-new model. Example 4: The battery will only charge if the power plug is properly positioned. In order to charge the battery, it is necessary to wriggle the power plug. After locating the optimal charging position, the battery will charge properly.