Why is my Apple 4S still consuming data and not running any programs after turning on cellular data?

Why is it that after turning on cellular data on my Apple 4S, no programs are opened and it consumes data and

In your case, it is recommended that you connect to a WIFI environment and let the traffic run out. Maybe your phone is downloading the IOS upgrade package.

Generally speaking, Apple devices don’t have much traffic as long as you don’t jailbreak and install other background programs. Normally, there are only two kinds of background traffic that can use cellular data.

1. Traffic of notification mechanism

Generally, if you use this kind of traffic every day, it will only be 20-30M in a month, which is about 1M a day. It is recommended to open a mobile plan or something, and your phone can last for a few days with notifications on standby.

The notification mechanism is a major feature of Apple. If you don't use it, it will really waste Apple's machine. The principle is that programs that need to be always online, such as QQ, Momo, WeChat, etc., can use the notification mechanism to stay online without having to use it. Keeping these software running (keeping the software running in the background consumes electricity, and you don't know what it is transmitting in the background), smartphones like Android are not so good. If you want this kind of software to be online all the time, you have to You can imagine that opening these software and letting them run in the background will consume more power. Therefore, many Android phone users cannot keep QQ online 24 hours a day because they usually close the program for fear of wasting power, let alone so many programs. All of them are opened in the background, but Apple is different. These softwares use a notification mechanism to maintain the connection between the background and the server. That is to say, as long as there is a connection to the Apple notification service, all such software can be kept available at any time. You are notified of information, and the traffic will not increase (if the program wants to do something with other traffic in the background, you can't do it, because the notification mechanism has limited functions and is mainly used for information notification). Android later had a similar mechanism, but because The reason for the domestic network closure is that the notification server cannot be connected and used normally in China, so we can only open the program in the background and operate the program online)

2. Software installation and download

If you have software being installed, it is best to complete the installation under WIFI, otherwise it may be automatically downloaded under cellular data, but you can also click the installation icon to pause, wait until WIFI is available, and then click to continue the installation. This The download and installation also includes the download of the automatic upgrade installer for the system after IOS5. There seems to be a setting switch in the settings to set whether to download only under WIFI. You can try it, but the recommended approach is to complete all installation and upgrades under WIFI. , it will pause when you leave WIFI. Of course, if you have heavy 3G traffic, you can also download directly via 3G

Other backup data functions like ICLOUD generally do not use your cellular data, which can be set in the settings.

In addition to the above, since Apple does not allow programs to run in the background, generally speaking, there is no other background traffic to run, unless you have problems installing some third-party plug-ins after jailbreaking. It is generally recommended to install as few plug-ins as possible after jailbreaking. .

Why does iPhone4 use up data so quickly

The ways to save data on Apple mobile phones are as follows:

1. Turn off automatic sending of system logs: iOS 10.3 and above: Go to "Settings" > "Privacy" > "Analysis", tap to turn off "Share iCloud Analysis" and "Share iPhone & Watch Analysis"; iOS 7 to 10.2 .1: Go to "Settings" > "Privacy" > "Diagnostics & Usage", tap and check "Don't Send".

2. Optimize notification push: Go to "Settings" > "Notifications" and select the app's notification permissions as needed.

3. Turn off Wireless LAN Assistant: After upgrading to iOS 9 and above, the system will automatically enable cellular data to ensure network connection when the "Wireless LAN Assistant" (Wi-Fi) signal is unstable by default. Go to Settings > Cellular and tap to turn off Wi-Fi Assistant. Note: iPhone 4s, iPad 2 WLAN Cellular, iPad (3rd generation) WLAN Cellular and iPad mini (1st generation) WLAN Cellular do not have this feature.

4. Turn off cellular data in the App Store: Go to "Settings" > "iTunes Store & App Store" and tap to turn off "Use Cellular Data".

5. Optimize the automatic refresh of background apps: iOS 7 and above systems have added a "Background App Refresh" setting. Configuring background app refresh permissions on demand can reduce traffic consumption. Go to Settings > General > Background App Refresh, tap to turn off Background App Refresh, or adjust app background refresh permissions as needed.

6. Adjust the network access permissions of the app: iOS 8 and above systems have added app network access permission control. If you find that an app consumes a lot of data, you can set the network access permissions independently. Take the "Notes" app as an example: iOS 10 (only for Chinese banks), go to "Settings" > "Cellular Networks" > "Apps that use wireless LAN and cellular networks" > "Memos" and set the network access permission to " Wireless LAN"; iOS 7 to iOS 10 (non-Chinese), iOS 7 to iOS 9 (Chinese), go to "Settings" > "Cellular Network" > "Use Cellular Data for" > "Notes", tap Turn off the switch after the app name and adjust the app permissions to only allow "Wireless LAN (Wi-Fi)" to access the Internet.

7. Turn off cellular data: For iOS 7 and above, go to "Settings" > "Cellular Network" > and tap to turn off "Cellular Data"; for iOS 6, go to "Settings" > "General" > "Cellular Network" ", tap to turn off "Cellular Data"; for iOS 4 to 5, go to "Settings" > "General" > "Network", tap to turn off "Cellular Data".

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