Mobile data line is used to send and retrieve data with connected computers, widely used in maintenance, network, civil and other fields. The advantage of using data lines is to download ringtones, pictures, games, and address books through data lines and corresponding software, which can save a lot of high cost of GPRS downloading. You can also use computers to manage phone books, text messages, and backup information on your cell phone.
First, the data line of the mobile phone can be divided into the following categories:
1, M-bus: the transmission rate is low (9.6kbp/s), the hardware is simple, mainly in conjunction with the maintenance, unlocking software use, that is, we often say "brush machine", although the transmission is slow, but stable.
2, F-bus: the transmission speed has been improved (115.2kbp/s), mainly for wireless Internet, transmission of ringtones, pictures, games and so on, which is our most common data line.
3, DKU-5: high speed data transmission (230kbp/s), complex structure and high cost, but only supports the corresponding powerful software and wireless high-speed Internet access.
4, Flash: dual mode mobile phone data line, its interface has a dialed switch, is the choice of FBUS, MBUS switch, in addition to the FBUS function, can also be used for maintenance and upgrading.
Two, the difference between interface types: (according to the interface, there are two kinds of data lines that are used most frequently).
1.USB interface data line (DataCableForUSBPort)
2, COM port data line (DataCableForCOMPort)
Three, data lines and mobile phone applications:
1, data line can not use the problem: a lot of players encounter this problem when the blame on the data line, in fact, in fact, because the data line is connected, mobile phone, computer or supporting software any problem will lead to the data line can not be used normally. When we encounter such a problem, we recommend that you follow this step:
(1) check the connection, such as whether the com/usb port is connected to the computer, and whether the serial port is connected with the mobile phone.
(2) whether the mobile phone is switched on or not, the general data transmission requires the mobile phone to turn on.
(3), the software is matching, there are not installed according to the requirements, some data line drive installation does not need to plug in the data line, some software installed after the installation of COM mouth;
(4) finally determine whether the data line problem is, and if so, it can only be replaced.
Although there are many problems that can not be used, the problem is usually found by checking them one by one.
2, through the data line wireless internet problem: This is also a much involved problem, first need to go to the mobile location of the mobile location of the mobile phone, open the corresponding wireless Internet service (GPRS or CDMA1X); the mobile phone needs to have built-in modem function, and can support the transmission of mobile data line; corresponding software and supporting data line branch. Hold (for example, Nokia only DKU-5 line to support the new mobile Internet access, ordinary F-bus line is not allowed).
3, download pictures, ringtones problem: it is important to note that all mobile phones can not download pictures and ringtones, because of their mobile phone models and the lack of their own strength, causing most of the mobile phones to have no data lines or not supported application software, and some mobile phones can be transmitted, but to the map There are restrictions and requirements on the size of the chip and the format of the ring tone. This is also the point that the data line players need to pay attention to.