Laptop Problems and the Causes:
Laptop Motherboard Repairs: No power, Power but no boot, Shutdown, Random power off, Battery charging problem, Over Heat, No Sound, No video, shut down/hang when moved, AC adapter turns off when plugged in.
Causes: Bad voltage regulator chip, bad capacitor, bad resistor, bad BGA chip (Ball Grid Array), bad diodes, bad thermal chip.
Laptop Graphic Repair: LCD flickering, LCD dimming, Broken Screen, Vertical/Horizontal stripes
Causes: Bad Inverter, Bad Back Light, or Bad graphic Chip.
Drive issues:Cannot recognize hard drive, CD-ROM, PCMCIA Wireless, loose USB ports, WAN/LAN Port, Keyboard, bad battery.
Causes:Cold solder, Bad BGA chip, Loose connection.
Laptop Power Jack Repair: No power, intermittent, no charge.
Causes:Broken power jack, loose connection, cold solder.
Over heat: Bad thermal chips. Bad power regulator chips
Causes: shutdown randomly, keep restarting, system hang.
Liquid Spillage: Spill water or any kind of liquid
Causes: No power at all, intermittent (don't try to turn on/off, send your laptop to Laptop Rescuer to rescue your system).