It is possible to adjust the cover range of each antenna of phone

 It is possible to adjust the cover range of each antenna of phone .
Some models must be used 32-. 768KHZ the real-time clock chip clock signal and the sleep clock signal. 32. 768KHZ real-time clock is not normal, or it may cause the phone does not boot. Cited 32-768KHZ clock main factors clock backup battery short-circuit, 32. 768KHZ clock bad. Repair phone does not boot in conjunction with specific circuit analysis, as long as the principle of the phone's understanding is correct, clear thinking, boot failure generally can be excluded. Reflection: mobile phone repair workers should be fixed circuit failure analysis records. After the encounter the machines of different models of the same circuit must be available to a multiplier effect, is the so-called original aim. Every channel of phone utilizes the aluminum alloy heatsink and a fan.
With the rapid development of modern society, maneuvering of mobile phone models like the changes, the mobile communications industry needs a large number of practitioners able to keep up with industry changes in cell phone repair, mobile phone repair training leader in the Tianmu Telecom vocational schools, according to their own practitioners of teaching and training high-quality mobile phone repair needs, the organization has many years of senior teachers in the mobile phone repair training experience, combined with the advanced teaching of the vocational schools of the Tianmu Telecom ideas, write a set of mobile phone repair materials (including: basic, Motorola , Nokia, Samsung, domestic mobile phone), this kit is by mobile phone chips and characteristics of classification, easy to make mobile phone repair by giving top priority, mastery, called the canon of mobile phone maintenance. The company can provide the customized power supply for phone.phone has the high quality and performance of palm and mini size and high portability
The GSM family of mobile phone made machine can be divided into eight platforms of MTK, ADI, TI, AGERE, PHILIPS, INFINEON, SKYWORKS, SPREADTRUM: MTK chip MTK (MediaTek in Taiwan, the Media of Tek Inc.) family of products, MTK platform can be used in the low-end, baseband integration. Now the most brand-name mobile phone with its chips, especially at least 70% with MP3 MP4 using the MTK chip. The baseband chip: MT6205, MT6217, MT6218, MT6219, the MT6226, MT6227, MT6228. It is the pocket phone with jamming range of 30-40m.
The MT6205 is the first program, only the basic functions of GSM and does not support GPRS, WAP, MP3, and other functions (MP) in 2003. MT6218 MT6205 based on the increase GPRS, WAP, MP3 function. The MT6217 is the cost down program of MT6218, MT6128 the PIN TO PIN, just different software, other MT6217 supports 16bit data (2004 MP).