2, appearance problems or sensory problems can not be a reason to repair or replace the machine, you can only talk to the businessNegotiation process. In addition, the phone has a sound when shaken up, the screen has a sound when pressed hard, and the Home button has a clicking sound or no feeling can not be used as a reason for maintenance, because the after-sales is a functional fault.
1, can be called mobile phone. Because mobile phones simply don't have phone linesThere are no fixed location phones, so PHS and mobile phones can be called mobile phones.
2, belongs to China Telecom or Netcom. In the north it's Netcom, in the south it's Telecom.
3. PHS differs from mobile phones in many ways. PHS, a new type of personal wireless access system based on wireless local phone system, uses micro-cellular technology to allow mobile phones to move freely within the coverage of wireless network, to receive and make calls at any time.
4, PHS mobile phone? Wireless local system is dedicated to terminal mobile phones, while mobile phones are mobile phonesMobile communication system terminals, because the two systems are completely different, so these two types of mobile phones can not be exchanged, that is, mobile phones can not enter the wireless local telephone network, PHS mobile phones can not enter the mobile network. The radiation is small, the phone bill is relatively cheap, and the electricity is not charged. But it's a small service area, so there's no signal outside.
5, mobile phone, belongs to the mobile terminal, is a mobile phone that can be held in the hand. In the early days, because of the larger size of the mobile phone, it has now developed to the 4G era. In April 1973, American engineering technician "Martin Cooper" invented the world's first civilian handPool. The procedure is as follows: Open the cover of the gas battery card slot. Rotate the three batteries at will to observe whether there is a digital display, it means that the battery is still powered, and the power failure is caused by poor contact. If there is still no display, replace the battery with a new one as follows.
When LO is displayed on the gas meter, it means that the battery needs to be replaced. If it is determined that the gas meter is out of power, it is necessary to replace the battery. First find the battery back cover and open it. Take off the original battery and replace it with a new battery, which is to note that the primary battery is a number of batteries, and the new is the same. Some battery card slots will have a card to hold the battery, which is supposed toRemove the battery with large space first, and then remove the battery with small space.
Open the gas battery card slot bridge box cover according to the diagram; As shown below! Rotate the three batteries at will to observe whether there is a digital display, it means that the battery is still powered, and the power failure is caused by poor contact. If there is still no display, replace the battery with a new one as follows. Open the battery box, according to the direction of the "+" and "-" poles in the battery box into the 4 No. 5 alkaline phones, first install the inside of the strip, and then install the outside.
How to change the gas meter battery before replacing the battery, first need to close the gas valve, gas meterThere is a yellow sticky paper on the face, you can see the reminder, here is the lid to install the battery. Directly open the lid, there is a small hole on the left, inside is installed 4 electricity. First take out the first battery in the upper left or upper right, and then take out the other three batteries one by one.