What should I do if I can t switch the network after Redmi Note4 update?

It is estimated that it is caused by the error of the mobile phone system, so it is necessary to update the mobile phone system in time. Here's how to resolve the issue if you encounter an inability to change the network type:

1. Enter the desktop of the phone, then press and hold the power button to restart the phone.

2. Then enter the network type setting of the mobile phone again and adjust the network type.

3. If you still can't complete the setting, the phone system is estimated to be damaged by other applications, and the problem can be solved by upgrading.

If your phone won't charge, we recommend you try it as follows:

1.Use the original charger to connect to the home power source for charging.

2.Replace the power outlet, try or change a data cable to connect to the charger for charging.

For phones with removable batteries, you can also try:

1) It is recommended to turn off the battery and remove it, and use a cotton swab to clean the battery contacts and the contact points where the phone connects to the battery. Try charging again after reinstalling the battery.

2) If possible, replace the battery or use the cradle to charge it.

3.If the phone can be turned on normally, it is recommended to back up the data in the phone (such as contacts, multiple files, etc.) and restore the phone to factory settings.

If the problem persists according to the above methods, please bring the purchase invoice, repair card and machine to the Samsung service center for inspection.

There are generally several workarounds for this situation:

Open Phone Settings - Mobile Network - Select Network to turn on.

Turn on Airplane Mode in the notification bar, wait a few moments, and then turn off Airplane Mode. It's a bit like giving the network a refresh.

Turn it off and try restarting your phone.

If the above methods are not helpful for switching networks, then please bring the three warranties to the mobile phone after-sales repair for mobile phone repair.

There are two ways to fix Redmi Note3WiFi feigning death:

1. Redmi note3wifi fakes death, and it can be solved by turning off the hidden mode.

2. If the above methods still can't solve the problem, you can choose to restore the factory settings and restart the phone after three clearances.

How to set it up:

First of all, let's take a look, now the 4G network has been turned on, and the word 4G appears in the signal in the upper right corner, which is successfully opened, but two conditions are met, the first is that your area has 4G network coverage, and the second is that your mobile phone must support 4G card;

2.Let's first find the words in the settings of the mobile desktop and go directly to the settings page;

3.After entering the settings page, we click on all settings above, and enter it after finding the word mobile network;

4.Under the options in the mobile network settings, we will find the network type selection;

6.We can turn on the 4G network, but we must pay attention to the traffic, if we don't use it, switch to the 2G network, not only can save power, but also will not miss the messages sent to you.

The Redmi Note4 phone is set up for 4G by:

1. Open the system settings app in the MIUI system, and click on the system settings page to select the "Mobile Network" option.

2. Choose dual SIM and mobile network.

3. Click on China Mobile or China Unicom in the SIM card information.

4. Click Network Type Selection.

5. Choose 4G or 3G preferred.

If you encounter the situation that your mobile phone cannot turn on or turn off the wifi, it is recommended that you:

1.reopening or closing the attempt;

3.Try after restarting your phone;

5.If the above solutions do not solve the problem you are experiencing, it is recommended that you go to the after-sales service to deal with it.

It didn't work, I tried.

Mine is the same, try the line brush, if it doesn't work, return to the factory.

Hello. What about your mobile phone purchased in **? What is the system version? Please try the following:

1. Xiaomi mobile phones come with similar security software running in the background, if you install other security software, it may cause conflicts, it is not recommended that you install third-party security software, installing these software may affect the normal use of the phone.

2. If your system is not the latest system version, it is recommended that you turn on the network and update the system version. The new system version will add some new features and fix some problems in the old version.

3. If you still can't, it is recommended that you try to back up and empty the data, which may cause interference in the data. Backup: Security Center - Backup - Create a backup to back up the data you need.

Clear data: In the shutdown state, press and hold the volume plus button and the shutdown button, and let go when the boot screen appears, and you can enter recovery. Go to Recovery >Chinese>> >> Clear Data >> Empty all data.

4. You can also use the line brush brush machine to try, the line brush is more thorough. It is recommended that you back up your computer before flashing.

bPlease flash the machine according to the flashing tutorial, the flashing tutorial.

The sixth type is the line brush.

If the mobile phone cannot access the Internet normally, you can troubleshoot according to the following conditions:

Situation 1] The contact between the SIM card and the metal contacts of the mobile phone is insufficient, and the SIM card can be reinserted.

Situation 2] If the SIM card is damaged or there is a problem with the mobile phone, you can change the phone to test whether it is the SIM card or the mobile phone is faulty.

Situation 3] The current location is a signal blind zone or suddenly no signal, you can change places to test and pay attention to whether the mobile phone signal of other users around you is normal.

Situation 4] If the mobile phone card is in arrears or is shut down, you can pay off the arrears and turn it on.

Situation 5] The service is suspended due to abnormal use of the number, such as the number being used for illegal or illegal activities.

Situation 6] Roaming in Taiwan, Hong Kong, Macao or abroad can only be used after enabling Taiwan, Hong Kong and Macao roaming and international roaming.

Situation 7] If the total traffic generated by the Internet reaches the ** traffic cap value in the current month, the system will automatically turn off the Internet access function, or limit the speed of the network, and the network will be automatically restored in the next month, which shall be subject to your ** traffic cap rules.

If you have a mobile phone (a friend's, colleague's, family's phone), can you borrow it and try it out to see if you can connect to the Internet? If someone else's mobile phone can be connected to the Internet, then it is your own mobile phone problem. If someone else's phone can't connect to the Internet either, then it's a problem with the router.

Specific workarounds:

1. Check whether to turn on airplane mode, if it is airplane mode, then it will definitely not be able to connect to the wireless network.

2. Check whether the mobile phone is short of power, sometimes it is impossible to connect to the network due to lack of power.

3. If it is not the above 2 reasons, then take your mobile phone to the closest place to the router and try it.

4. If it doesn't work, then restart the phone and see if it can connect.

5. If it still doesn't work, open the wireless network settings and advanced settings of the mobile phone, and adjust the WLAN hibernation setting to "never".

6. If you have tried all of the above and still can't do it, it is recommended to go to the store to have a look.