The letters displayed on the mobile phone network represent the network in use. In addition to the commonly mentioned 3G network, there are also 2G networks, 2.5G networks, 2.75g networks, and 3.5G networks. 2G is a common GSM network, and 2.5G is added with GPRS or CDMA (earlier version) on the basis of GSM ), 2.75g is an edge network added on the basis of the GSM network (somewhat similar to GPRS but with faster speed). 3G is the three types of systems: TD-SCDMA, CDMA 2000, and WCDMA, 3.5G is the network that adds the heat map to the base of 3G. If "G" is displayed on the mobile phone's network, the 3G network is not found on the mobile phone, and the 2G network is used. If "e" is displayed on the mobile phone's network ", indicates that the mobile phone uses a 2.75g network. If the mobile phone displays "T", it indicates that it uses a 3g td-SCDMA network; if the mobile phone network shows "H ", it means that your mobile phone uses the 3.5 Gbit/s mobile phone.
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