Problem 06: Laptop battery not charging properly. 

Problem description:
The laptop battery stopped charging properly. It’s not charging at all or charges only after you adjust the position of AC adapter plug inside the power connector on the laptop.

Possible problem:

1.    Failed battery.  If the battery stopped charging completely try reconnecting the battery first. If it doesn’t help, remove the battery and try running the laptop just from AC adapter. If the laptop runs fine from AC adapter but doesn’t charge the battery at all, most likely it’s either bad battery or motherboard problem. Try replacing the battery first.

2.    Loose DC power connector. If the battery charges only after you adjust the position of AC adapter tip inside the connector, this is DC jack related problem.

Problem 07: Screen light doesn’t work or fails while the laptop  

                    running. 

Problem description:

The laptop starts properly but after a while the screen light turns off. The image still appears on the screen but it’s very dark. In some cases the screen light never starts but you still can see a very faint image on the screen. In all cases the laptop video appears to be fine on the external monitor

Possible problem:

Most likely it’s either the screen inverter or screen backlight lamp (CCFL) failure.  Both fail very similarly causing the screen light to go off. In order to troubleshoot this kind of failure effectively, you’ll need some spare parts: either new working inverter or known good backlight lamp.

Problem 08: Laptop has strange or garbled image on the screen.

Problem description:
The laptop turns on properly but shows bad, wrong or garbled image on the screen.

Possible problem:

1.    Graphics card failure. First of all, test your laptop with image output on the external monitor. If you see the same problem on the external screen, most likely this is graphics card related failure.

2.     If the problem appears only on the laptop screen, it could be related to one of the following: poor connection between the video cable and motherboard or LCD screen or failed video cable or failed LCD screen.

Problem 09: Some Laptop keyboards keys stopped working.

Problem description:

The laptop turns on and runs properly but some keyboard keys do not work at all or type wrong characters.

Possible problem:

Most likely this the keyboard failed. Laptop keyboards are not repairable. If some keys stopped working, you’ll have to replace the keyboard.

Problem 10: Missing or broken keys on laptop keyboard.

Problem description:
A key got separated from the laptop keyboard.

Problem solution:

1.    If a key got separated from the keyboard, it’s still possible to fix it without replacing the entire keyboard.

2.    Hopefully you didn’t damage the key hinges.

3.    If you have many keys missing, probably it makes sense to replace the whole keyboard.

Problem 11: Laptop makes repetitive beep sound on startup.

Problem description:

You turn on the laptop but there is no video on the screen. Instead, the laptop makes repetitive beeping sound. You can “fix” the problem if you press on the keyboard keys.

Problem solution:

Most likely it happens because there is a stuck key on the keyboard. In this case you’ll have to replace the keyboard.

Problem 12: Laptop spilled on laptop.

Problem description:
You spilled something on the laptop and it’s stopped working.

Problem solution:

1.    Liquid spills are very dangerous and unpredictable. If it happened, turn off the laptop ASAP, remove the battery and do not use it until all internal parts are inspected for liquid damage.

2.    It’s still possible the laptop will work again after you clean the damage.