Now the DIY function of the mobile phone is getting stronger and stronger, but in order to realize these DIY functions, it is necessary to exchange data with the computer. In the current mainstream online mode, there are three kinds of infrared, Bluetooth and data lines.
The mobile phone data cable was originally an ordinary mobile phone accessory, mainly used for repairing, detecting mobile phones, and business people managing phone books through computers. Today's data line applications have been quite extensive, making mobile phone LOGO, upgrading mobile phone operating system, Chinese mobile phone book, managing SMS, managing address book, modifying network logo, sending SMS, MMS, downloading ringtones, pictures, using mobile phone dial-up, etc. The function is very popular among users. Because different data lines will map out different functions, you will distinguish them at the time of purchase.
First, distinguish from the system
The IC of the mobile phone data line is mainly used for anti-static circuits. The system is divided into three types: MBUS, FBUS and MBUS+FBUS. Different systems have different functions. MBUS data cable transmission speed is low (9.6kbp/s), it can be used to repair and unlock software. It can also change the startup screen, adjust the screen contrast, change the standby screen, test, adjust, school mobile phone, change the mobile phone security password, view the mobile phone. Production materials. FBUS data line transmission speed is high (11.5kbp/s), mainly used for sending and receiving faxes, surfing the Internet, sending and receiving short messages, games, editing phone books, modifying ring tones, changing group display icons, changing standby screen, changing contrast, maintenance functions (small part of the repair function).
Second, distinguish from the interface
1, COM port line seems to be quite stable, USB speed will not be much faster than COM.
2, the USB port is quite simple to use, it is easier to plug and unplug, if you do not plug and unplug the data cable frequently, you can select the COM port.
3, the USB cable is relatively expensive, the price is around 20-50 yuan (non-original), the data lines on the market are all with CDs.
4, a part of the USB port data line has a switch, with a charging function, more convenient to use