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First of all, the phone system malfunctioned, so there was a problem with the battery level display. This kind of problem is the easiest to solve, you can directly shut down and restart, which is equivalent to data refresh, and the general power display will return to normal.
Second, the charger is malfunctioning. This malfunction is the main reason why the phone cannot be charged. So how to judge the quality of the charger.
It's actually very simple, try it with another charger. If it can be charged, then it can be concluded that the charger is faulty.
Thirdly, the charger and the phone are in poor contact. This is also a common situation where the charger is not plugged in properly due to carelessness on the part of the phone user. The solution is simple, it is to switch sockets back and forth.
Clause. Fourth, there is a problem with the mobile phone battery. Generally speaking, it is rare to have problems with your phone's battery.
But once there is a problem, it is a big problem and must be taken seriously. Therefore, when it is found that the charger and mobile phone system are not faulty, you should focus on checking the battery. If you find that the battery is swollen, then it means that there is a problem with the battery and you must stop using it immediately.
Clause. Fifth, there are quality problems with the mobile phone itself. If you buy a copycat phone, then there is a high probability that the mobile phone will malfunction. If it is a brand machine, it needs to be returned to the original factory for processing.
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I touched the signal receiver when I disassembled the machine.
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The two have little to do with each other, so it is recommended to see if it is a network problem with the mobile phone card.
If it is disassembled in a regular store, you can reflect it, and it should be solved for you.
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If you are using a Huawei phone and the phone shows Emergency Call Only, we recommend that you try to solve the problem by following the following methods:
1.Whether a magnetic case, metal case, magnetic stand, or magnetic chuck cup is used.
If your phone uses a metal case, magnetic case, magnetic bracket or magnetic chuck, it is recommended to remove it and try it, as metal and magnetic materials can easily interfere with the signal and cause the phone signal to deteriorate.
2.Change your current location.
1) In some closed indoor environments, such as houses with dense spacing between buildings, the mobile phone signal may be blocked, resulting in poor signal. You can go outside to test if the mobile phone signal can return to normal.
2) The degree of network coverage of operators varies according to different regions, and urban areas basically meet the coverage, but some remote areas may have insufficient coverage capacity, which will lead to poor mobile phone signal. You can determine whether it is caused by network coverage problems by whether the mobile phone signal is poor when you are only in the same area or the mobile phone signal status of nearby friends using the same carrier** card.
3.Check that the APN settings are correct.
Incorrect APN settings will affect the normal use of the network.
2) Click the APN name to enter the APN setting interface.
3) Open the three dots in the top right corner and tap Reset to default.
4.Clean the SIM card, cross-swap card attempt.
1) Please take out the ** card to observe whether the metal surface is dirty or oxidized, it is recommended to keep the ** card clean and try it.
2) It is recommended to change to another SIM card of the same carrier, or change the SIM card to another mobile phone that supports this card before viewing. If the signal icons are all displayed as no signal, it is recommended to go to the operator's office to check and replace the SIM card with a new one.
5.Reset network settings.
If the problem persists, we recommend going to Settings, searching for Restore Network Settings, and clicking Reset Network Settings. This operation will delete Wi-Fi and Bluetooth related records, so please operate with caution.
If the problem persists after trying the above methods, we recommend that you back up your data in advance (WeChat QQ and other apps must be backed up separately) and bring the relevant purchase voucher to a nearby Huawei customer service center for testing.
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