After iPhone6 upgrades iOS11, the wifi signal becomes worse, and the Internet signal is no problem w

You put it in airplane mode and then just turn on the wifi to see if you have the same problem. If there is still one, it can only mean that the software adaptation is not good, after all, ios11 has not been officially released.

First, the iPhone can't type**, and it can't be connected** for the following reasons:

1. iPhone network settings are incorrect.

2. There is a problem with the SIM card.

3. The signal of the network operator is unstable.

4. iPhone system failure or hardware failure.

Second, the general treatment method:

1. First check whether the signal is not good, it is best to use a friend's iPhone, try to change the card, and eliminate the problem of the card.

2. If the card is fine, it is recommended to restore the iPhone network settings to try, and open the settings of iPhone6 in turn--General--Restore--Reset Network Settings.

Mine is the same, I'm going crazy!!

1.Damage to the SIM card leads to no service due to inability to read the SIM card, 2The hardware failure of the mobile phone leads to the inability to read the SIM card resulting in no service, 3

Software conflict resulting in inability to read the SIM card resulting in no service, 4There is no signal coverage in the area, resulting in no service.

5.It is recommended to bring the device to a regular after-sales center for repair, so as to avoid problems such as damage to the motherboard caused by damage to the mobile phone card slot.

1. Do not use a metal protective case for mobile phones to avoid the mobile phone wifi signal being shielded, resulting in poor mobile phone wifi signal;

2. If the mobile phone is not even good at other WiFi signals, there may be software or hardware failures in the mobile phone, you can reset the mobile phone to the factory state first, or the mobile phone after-sales service center professionals will conduct a comprehensive test of the mobile phone software and hardware;

3.Check your router.

If the mobile phone is only connected to a certain WiFi signal is not good, it is recommended to try the following methods.

Check whether the ventilation and heat dissipation of the WiFi router are normal to avoid unstable operation of the WiFi router caused by high temperatures.

Check whether there is a strong source of radio interference around the mobile phone and WiFi router, which affects the quality of WiFi signal transmission between the mobile phone and the WiFi router;

Use other mobile phones to test whether the signal of the wifi router is normal, if the signal is also not good, there may be software or hardware failures in the wifi router, you can reset the wifi router to the factory state to eliminate it, if it still fails to solve the fault, it is recommended to replace the wifi router.

If it is a gray icon, it cannot be started, it should be a virtual weld.

There is a problem with the router;

Too far away from the transmitter of the wifi signal.

What should I do if the wifi signal of the iPhone suddenly changes?

Turn on your iPhone and tap Settings.

In the Settings page, find General and click it.

In General, find Restore and click it.

In the Restore page, find Reset Network Settings and click it.

Once inside, if you need to enter a password, enter the password for the previous access restriction before continuing.

After entering the password, click [Reset Network Settings], the system will restore the network settings, and then reconnect to the WiFi after completion.

Restart the device, normal, mine too.

This is due to the network settings, which can be solved by simply restoring the network.

The solution is as follows:

Clause. First, open the Settings app on your iPhone's home screen.

Clause. 2. Find the "General" option in the settings list.

Clause. Next, click at the bottom of the restore list to open the "Restore" option.

Clause. 4. In the list of restore options, click on the "Reset Network Settings" column.

Clause. 6. Then click on the "Reset Network Settings" option to confirm the restoration.

After trying the above two methods, the mobile phone signal is still very poor, and users can also try the method of resetting the network settings. How-to: General - Restore - Restore Network Settings.

4: Re-flash the machine, many netizens report that after upgrading, there is often no service or full signal call failure.

After trying the above two methods, the mobile phone signal is still very poor, and users can also try the method of resetting the network settings. How-to: General - Restore - Restore Network Settings.

4: Re-flash the machine, many netizens report that after upgrading, there is often no service or full signal call failure.

This is due to the network settings, which can be solved by simply restoring the network.

The solution is as follows:

Clause. First, open the Settings app on your iPhone's home screen.

Clause. 2. Find the "General" option in the settings list.

Clause. Next, click at the bottom of the restore list to open the "Restore" option.

Clause. 4. In the list of restore options, click on the "Reset Network Settings" column.

Clause. 6. Then click on the "Reset Network Settings" option to confirm the restoration.

He knew that 7 was listed at this time.