Lande mobile phone repair
1. Mobile phone maintenance training: learn from scratch and be familiar with the basic structure and main components of mobile phones. From electronic components, integrated circuit chips to the formation of mobile phone circuits, mobile phone disassembly and BGA chip blow welding training, 3G smart phone application software and circuit principle explanation. Mobile phone maintenance training mainly explains the principles of platform chip series such as Nokia, Motorola, Samsung, Sony Ericsson, domestic brands MTK, Spreadtrum and AD, as well as the download, installation and use of mobile phone maintenance software (language upgrade, unlocking, programmer use and disassembly-free). After graduation, I can undertake maintenance work independently, have the ability to solve difficult faults, and be able to analyze, detect, judge and maintain various mainstream models and common faults.
2. In-depth study of computer fault diagnosis and maintenance methods, master the real chip-level maintenance technology. Computer maintenance training includes the disassembly and welding methods of SMT components and BGA, and the maintenance methods and skills of common board failures such as no power supply, no startup, abnormal crash and peripheral interface failure. Able to independently complete the hardware maintenance of the whole computer maintenance training machine based on motherboard maintenance.
The architecture of notebook motherboard and the control mode of each component; Power supply voltage and power-on sequence of chipset; The working principle of isolation circuit, standby circuit and trigger circuit of notebook computer maintenance protection; CPU core voltage, working principle of grouped power supply unit; Notebook maintenance training the use of special detection card for motherboard; Troubleshooting ideas such as no trigger, no boot, no display, power failure, crash, white screen, black screen, BIOS settings, serial port, USB interface, keyboard, CD-ROM drive, battery and charging circuit, and circuit analysis of the whole machine.
3. Assembly and modification of notebook LCD, high-voltage strip, lamp quality and driver board configuration. Maintenance of white screen, jitter, vertical band, black belt, white screen, flower screen, black screen, red screen and blue screen, maintenance of LCD, LCD training, changing lights, changing films, and handling backlight, etc.