After the Mi 3 updates the system, the data traffic and wireless network cannot be switched automati

Hello. Please try it out according to the following two points:

1.Please back up your data first (by turning on System and Security Backup to create a new backup. Then, enter recovery (power off, press and hold the volume on + power button to enter recovery) mode, clear cache, clear user data, clear all data, restore backup, settings and third-party security software in the phone do not recover.

Try if it works properly.

b.During this time, please back up your data, enter recovery (power off, press and hold the volume up + power button to enter recovery) to clear the cache, clear user data, clear all data,. The computer is equipped with a driver (you can find a Xiaomi mobile phone assistant to connect to the phone, and the driver components will be automatically installed), **a miflash flashing tool.

c.When everything is ready, please follow the flashing tutorial on the official website to use the sixth line brush, which is the official flashing tutorial:

It should be by default,In the case of wifi, even if the data is on, you will use wifi,When there is no WLAN, the data traffic you turn on will be used,Hopefully。

When the mobile phone signal is not good, the Xiaomi mobile phone can automatically switch the signal, please follow the steps below:

1.Click on the wifi button to enter.

2.Click on the wifi assistant to enter.

3.Enable intelligent network selection.

4.After turning on the intelligent network selection, it can be switched automatically.

No need to set up, this is automatically converted.

The question of "can't get online" is very general, I try to guess the problem you may encounter, I suggest you try the method to operate it:

1. It is recommended that you put this SIM card into another mobile phone to check whether you can access the Internet.

2. If you can't access the Internet, please ask your carrier if you are in arrears.

3If it can be used, please put it in your Xiaomi phone, turn on the data switch, and reset the default in Settings - Access Point APN, and then restart the phone to try again.

4If you still can't access the Internet, it is recommended that you back up your data, enter recovery to clear all data (turn off, press and hold the volume up + power button to enter recovery), upgrade your phone to the latest development version of the system, don't install apps that require root permission for the time being, and see if it can be restored to normal.

5If you still can't access the Internet, it is recommended that you go to a nearby Xiaomi authorized repair point or Xiaomi Home to have the staff check it.

Address of Xiaomi authorized repair point and ** inquiry.

Mi Home address inquiry.

Mi Home is open from Tuesday to Sunday, from 10 a.m. to 6 p.m.

Try replying to the factory settings.

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.

In this case, it is considered that the network data of the mobile phone is temporarily not registered, and the problem can be solved by re-registering the network. Here's how:

1. Turn on your phone, and then enter the desktop of your phone.

2. Then in the drop-down menu column, select to Airplane Mode, turn it on and off.

3. Or re-register the network to solve the problem.

Note: Unable to connect to the network may also be caused by the arrears of the mobile phone, then you can call the operator** to check whether there is any arrears, or whether there is no signal in the area where the mobile phone is located, and whether the network system is correct.