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Anonymous users2024-02-06The iOS system does not have 3G and 4G network switches, if you turn on the cellular mobile data, the location has a 4G network will use 4G by default, if there is no 4G and 3G, it will use 3G by default. In the same way, if there is no 4G and 3G, it will become 2G.
Cellular mobile communication is the use of cellular wireless networking, in which terminals and network equipment are connected through wireless channels, so that users can communicate with each other during activities. Its main feature is the mobility of the terminal, and it has cross-zone handover and cross-local network roaming functions. Cellular mobile communication service refers to the voice, data, image and other services provided by the cellular mobile communication network composed of base station subsystem and mobile switching subsystem.
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Anonymous users2024-02-05Can you tell us about the specific situation?
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Anonymous users2024-02-04If you are using a Huawei mobile phone, there are many reasons why the mobile phone does not have a 4G signal and only a 2G signal, please follow the following methods to troubleshoot:
1.If you have no 4G signal on the primary SIM card when you are using dual SIM, make sure that the supplementary SIM card is receiving MMS.
If you encounter a problem when the supplementary card receives SMS and MMS messages, the main card will display 2G:
1) You can enter the information interface, click on three dots or four dots, enter More > Settings > Advanced or Settings > Advanced, and then set Auto MMS to Off.
2) If your mobile phone supports dual VoLTE dual pass, it is recommended that you enable the Dual SIM VoLTE function: in the VoLTE network coverage area, when the dual HD icon is displayed in the status bar of the mobile phone, two cards can work at the same time.
2.Please make sure the 4G switch is enabled.
1) When installing a single SIM: Please swipe down from the top of the phone screen, open the shortcut menu, press and hold the mobile data icon, enter the settings interface, turn on Enable 4G or select 4G 3G 2G in network mode to automatically select.
3.Please move your current location.
You can consult the network coverage of the local operator, or observe the mobile phone network conditions using the same operator's SIM card nearby, if there is no 4G network in the same situation, it is generally caused by the poor and unstable 4G network coverage of the local operator, it is recommended that you try after moving to other places.
4.Please restart your phone or switch on and off airplane mode.
The special configuration of some networks may cause your phone to be unable to return to the 4G network for a short period of time, but it can be restored after restarting the phone or turning on the airplane mode.
5.Please reset the APN
Incorrect APN settings will affect the normal use of the network.
It is recommended that you open Settings, enter APN in the search bar at the top, click Access Point Name (APN) to jump to the mobile data settings interface, click the Access Point Name (APN) again, then click the three dots in the upper right corner, and select Reset to Default Settings.
6.Please reset your network settings.
7.Please remove the SIM card.
1) If your mobile phone card is manually cut card, it may affect the signal reading due to non-standard shape and poor contact, it is recommended that you bring your personal ID card to the operator's business office to apply for a standard mobile phone card.
2) Dirty or oxidized SIM cards will also affect the reading of signals, so it is recommended that you keep the SIM card clean.
8.It is recommended to update to the latest system version in a timely manner.
If your phone still only has a 2G signal, contact Huawei Consumer Service** (950800), back up your data in advance (third-party apps such as QQ and WeChat need to be backed up separately), and bring your purchase voucher to a nearby Huawei Customer Service Center.
Huawei Customer Service Center.
Make an appointment for service. Boarding service.
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Anonymous users2024-02-031. The signal of the 4G network base station in the area where the mobile phone is located is weak, and the mobile phone can only automatically switch the muliang to the 2G network base station signal when it cannot receive the 4G network signal.
2. There is no 4G network base station signal in the area where the mobile phone is located.
The technology includes TD-LTE and FDD-LTE (strictly speaking, LTE is only, although it is advertised as a 4G wireless standard, it is not actually recognized by 3GPP as the next generation of wireless communication standard IMT-Advanced described by the International Telecommunication Union, so it has not yet reached the standard of 4G in a strict sense.) Only the upgraded LTE Advanced meets the 4G requirements of the International Telecommunications Alliance).
The mobile card shows that it is 2G, which may not be enabled for 4G; You can refer to the following methods to solve the problem; Take an Android phone. >>>More
You can capture it.,There's a lot of reward material after capture.,But the boss can't mix with you.。。 The way to capture is to wait for the boss to be lame and then put the trap, and then use the trap in the boss to cast her with the capture of anesthetic jade, and two hits are fine. And if LZ wants to catch the boss to play, the pocket series is recommended.
They've all said it, but they haven't said it!
Uh,The graphics card of the Internet café is better than yours.,The memory is also large.,3G memory can also be used.,Otherwise, buy a 1G.,It's not very cost-effective.,If it's an online game 3D,It's also related to the network speed.,Your graphics card is also a little low.,It's estimated that you have to sacrifice some special effects.。
The landlord still makes a set of black wolf birds first, no ear bolts to hit the dragon, unless it will roll and roar, otherwise it is a cup when it is roared, it is best to use the thunder attribute of the knife, and the five-star slashing army can also be upgraded to a ghost slash. The equipment is solved, it is the way to play, first of all, you must know the attack means of the dragon, big forward bite, small front bite, boom car, flying pounce, Thomas full spin, roar, throw stones, after understanding to learn to dodge these moves, and at the same time to dodge to counterattack, the correct position of the dragon should be the left front paw, facing the head of the dragon, when it turns sideways, a knife forward stab, a knife back retreat. After the big front bite is familiar, you can roll directly from the left armpit of the dragon to avoid, and the car will catch up and cut the tail, Thomas Quanxuan should stay away from the two positions, avoid wind pressure, and then you can make up for the two slashes, and the roar has the protection of the ear bolt to completely ignore it, and the landlord must get rid of the problem of greedy knives!