Shanghai HP notebook maintenance department: 
 URL: 
 Wang Pu Address: 
 Tel: Mobile: 
 Maintenance Address: No. 861 Tian Yao Qiao Road, Building 2, North Building, Room 1504, Shanghai Stadium Line 4, exit 3 
 One, HP Motherboard Troubleshooting: 
 Boot no display, can not enter the system password is forgotten, can not install the operating system. Laptop water, computer often crashes, computer blue screen, power down or reboot, the battery will not charge, turn error, no sound, sound card (do not recognize optical drive, hard disk, floppy, serial, parallel, etc.). . . . . . 
 1, HP laptop repair cells (Price) 2, HP notebook motherboard repair (quotations) 
 3, HP notebook repair screen line (quote) 4, HP notebook repair screen axis (quotations) 
 5, HP Laptop Repair lamp (Quote) 6, HP notebook repair screen shell (quotations) 
 7, HP laptop repair keyboard (quotations) 8, HP laptop repair graphics card (quotations) 
 Second, HP laptop LCD screen (LCD) Maintenance: 
 1, there are horizontal and vertical lines on the screen, split screen, broken screen, surface scratches and so on. 
 2, the external display normal laptop screen no display, screen dark, sometimes show and sometimes do not display. 
 3, the LCD screen black and white, Huaping, red screen, screen flickering and so on. 
 Third, HP keyboard symptoms features: 
 1, no keyboard, press the button. 2, 3 keyboard with keys, keyboard keys automatically. 4 keyboard keys not working and so on. 
 IV, HP battery failure phenomenon characteristic: 
 1, the battery is not charging. 2, the battery can be charged with a particularly short. 
 V, HP notebook drive maintenance: 
 Does not recognize drive. Do not read CD-ROMs (CD, DVD, COMBO combo, DVD / RW)