Apple6S signal is not good, there is no service as soon as it arrives indoors, and the same is true

The reason why there is no signal on the iPhone is because the signal will be affected by various factors such as terrain, landform, and tall buildings during the propagation process, and if you are in a relatively closed place, the signal will be affected. Here's how to deal with it:

1.Turn the phone back on and off and try again;

2.Swap the SIM card to a family member's or friend's phone and try again;

3.Check to see if other Unicom users around you have a signal;

If there is no signal, you can contact human customer service for feedback.

1. Since the iPhone is connected through a wireless base station provided by a mobile operator, it is normal for there to be no service if there is currently in some signal blind spots, and there is no need to worry. For example, in the elevator, or in some very remote corners, there will be no service.

2. If the iPhone has no service due to poor signal, the mobile phone signal will be automatically detected after leaving the signal blind zone. Of course, if there is still no mobile phone signal, you can enable airplane mode and then turn it on, so that your iPhone can immediately search for mobile signals around you.

Anhui Telecom wishes you a happy life.

There are several possible reasons why your phone suddenly has no signal:

First: the signal is relatively weak, resulting in no signal, change to a better signal.

Third: The phone is sluggish, and the device needs to be restarted

Fourth: It's your ** card that is loose, and you need to re-insert and remove the mobile phone card.

Fifth: hardware problems, need to be sent for repair.

Workaround:

1. Changing the network environment, the mobile phone is in some tall buildings, basements, parking lots, etc., which will affect the signal; If you are in a closed place, it is easy for the mobile phone to be disconnected from the outside world. You can try to change places to see if there will be a change in the mobile phone signal;

2. Re-register the network, you can restart the mobile phone and let the mobile phone re-register the network; Determine whether the SIM card is valid, if the SIM card is not installed properly, or the SIM card is damaged, the signal will inevitably be affected. You can remove the SIM card and reinstall it;

3. Or try to change to another SIM card. Carrier network problems, the mobile phone in a certain period of time, the signal suddenly deteriorates, it may be a carrier network problem. It is recommended to compare mobile phones with the same carrier SIM card in the same environment to see if there is the same situation, and you can try it at another time period.

Note: 1. Confirm that the local coverage of the 4G network of the operator to which the SIM card belongs, if necessary, it is recommended to change the network environment to observe. Check whether the mobile phone is enabled for 4G network mode, go to the mobile phone settings - mobile network dual SIM and mobile network - network mode to view; You can enter :

*View;

2. Turn off the data network, wait for a few minutes, and then turn it back on for observation. Go to Phone Settings - Mobile Network Dual SIM & Mobile Network - Access Point (APN), select "Reset to Default Settings", and then turn off and restart to try. Reset the mobile network, first set the network to 2G, wait for the network to stabilize, then set it to 4G, and then restart the phone.

The 4G signal has just been opened and is not very stable. Because 4G can't talk, you can only surf the Internet, you have to drop to 2G to make a call when you call, sometimes the network can't fall back and it will cause you to be unable to connect, mine is.

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1. There is no signal or the signal is relatively poor, which may be caused by other objective conditions. Because the signal will be affected by various factors such as topography, landform, and tall buildings during propagation, if you are in a relatively closed place, the signal will be affected. Here's how to deal with it:

Turn the phone back on and off and try again;

Swap the SIM card to a family member's or friend's phone and try again;

Check whether the signals of other Unicom users around you are normal.

2. If it still cannot be used normally after self-service troubleshooting, it is recommended that you contact the local manual customer service for verification and processing.

1: Toggle the airplane mode on/off.

When we use the iPhone in our daily life, we will occasionally find that the mobile phone signal is unstable, sometimes there is no signal, sometimes it is full and sometimes there is only one grid. Turn on the airplane mode first, wait for about five seconds, and then turn off the airplane mode, and you will find that the signal of your iPhone has "flew" back!

2: Manually select the carrier.

Generally speaking, the iPhone will automatically match after inserting the mobile phone SIM card and access the corresponding operator network, but many netizens find that there is a bad mobile phone signal or no service, and they can manually select the operator network. Enter the carrier option in the settings, turn off the "automatic" function, wait for a while and the network operator will be optional, users only need to select the corresponding operator according to their mobile phone card.

3: Reset network settings.

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: Settings - General - Restore - Restore Network Settings.

4: Re-flash.

This does not rule out the problem of poor SIM card contact, take out the SIM card in the shutdown state, and then wipe the chip with a clean eraser, insert it again after cleaning, and try it, if it doesn't work, you can also go to the business hall to change the SIM card.

Turn airplane mode on and off. In iPhone6s, swipe up at the bottom of the screen to open the shortcut panel, and then turn on airplane mode, of course, you can also turn on airplane mode in Settings, after turning it on, wait for 5 seconds and then turn off airplane mode to see if it solves the problem.

Restart your iPhone6s, press the power off button in your phone, then turn off your iPhone6s by swiping the screen, then restart your phone and see if you fix "No Service"!

Of course, removing the SIM card and verifying if it is a valid SIM card manufactured by the carrier can also solve this problem. See if the removed SIM card has been damaged, worn, or modified, and then reinsert it.

Update your iPhone6s, connect your iPhone6s to iTunes, and then upgrade your device system to the latest iOS system through iTunes. Of course, you can also go to "Settings" - "General" - "Software Update" to update and upgrade your iPhone6S.

After the above operations, it is still often displayed that there is no service, and it is recommended to go to the after-sales inspection and maintenance.

If there is no signal on the phone or a no service or emergency call prompt is displayed on the screen, it is recommended

2.If it is a dual-SIM phone, please check whether the SIM card is activated: Settings - SIM Manager - SIM1 SIM2 - Click the SIM card icon - slide to turn on (the operation mode may be slightly different for different models of mobile phones).

3.If there is still no signal, it is recommended to turn off the SIM card and remove it, wipe the SIM card chip with an eraser, and then reinstall it.

4.If it doesn't work, try to change to another location to rule out whether it is caused by poor signal coverage in your location.

5.Try to change the network mode to 3G or 2G (do not select the auto-connect mode). Note: Some machines do not support changing the network mode.

6.Try to change another SIM card.

7.Update your phone's system version: Settings - About Phone (About Device) - Manual Update Automatic Update (Software Update System Update - Update). Note: Please back up the data (contacts, messages, **, etc.) in your device before upgrading.

If there is still no signal or emergency call is displayed after the above operations, please bring the purchase invoice, warranty card and machine to the service center for inspection.

The Apple phone will have a signal and no service for a while:1Turn off the phone, take out the SIM card, and try again.

2.Check whether the network of the same operator on the surrounding mobile phone is normal, and determine whether it is a network fault. 3.

Restart your phone to try, if it doesn't work, reset the network settings to see if there is a system problem. 4.Change the SIM card to see if it's a card problem.

If there is a problem with the card, it is recommended to go to the mobile service center to replace the SIM card. 5.Enter the hardware test, click "SIM card test" on the hardware test interface, and see if the SIM card status is normal.

6.It is recommended to go to the after-sales outlets for detection of mobile phone problems.

Whether the signal is not very good in the place where it is located, other reasons can be ruled out by the following methods:

Open it to see if your SIM card is damaged and whether it is from the original factory.

2.Update the system, perhaps because the system is incompatible.

3.Restart your phone to see if the issue with your phone is resolved.

4.Turn on airplane mode and turn it off after a while to see if the problem is resolved.

That's walking into the dead zone, please change places, I hope it can help you.

If there is a software error in the operation of the mobile phone and wifi router, it is recommended to power off the mobile phone and wifi router and restart it.

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

In the case of natural environment and no obstacles, the wireless signal coverage radius of the general WiFi router is about 20-30 meters, so the distance and physical obstacles between the mobile phone and the WiFi router should be minimized to ensure good WiFi signal coverage quality;

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;

Check whether the WiFi router configuration artificially reduces the wireless signal transmission power of 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.

It depends on the mobile phone baseband, mobile phone antenna, mobile phone SIM card, base station distance, and mobile phone system version. I'll talk about how to detect the problem and how to solve it.

Mobile phone baseband antenna: It is a hardware problem, and it needs to be disassembled to detect whether there is a problem. Here it is recommended to go to the genius bar or authorized repair point for testing.

Mobile phone SIM card: Put the mobile phone card into another mobile phone, if the signal is still very poor, it means that the SIM card chip may be faulty, go to the nearest operator to replace the card.

Base station distance: If two mobile phones of the same operator (preferably the same model) are found in the same place, the network is not good, regardless of the SIM card problem above, it proves that the base station is far away or the base station frequency is too low. Call the operator's customer service to inform.

This depends on when the operator can solve it.

iPhone6 signal is not good, sometimes no service is the reason what's going on: mobile phone card problem, phone case problem, mobile phone hardware problem, mobile phone network setting problem.

iPhone6 signal is not good, sometimes there is no service, it may be a problem with the phone card.

The solution to this situation: It may be that the mobile phone card is not suitable for the mobile phone, and you can replace the Apple-specific mobile phone card.

The iPhone 6 signal is not good, sometimes there is no service, it may be a problem with the phone case.

The solution in this case: change the phone case or do not use the phone case.

iPhone6 signal is not good, sometimes no service may be a problem with the phone's hardware.

The solution to this situation is to replace the signal transmitter module or receiver module of the mobile phone.

The iPhone 6 signal is not good, and sometimes there is no service, which may be a problem with the mobile network settings.

The solution to this situation: you can open the mobile phone "Settings" - "General" - "Network Mode", and Jiang Network Mode can be set again.

In addition to the above problems, if the signal problem cannot be solved, the mobile phone will be sent to a special repair point for the Apple mobile phone for maintenance.