The four functions that the iPhone has to close are

. It is undeniable that the iOS system is very powerful, but some features are not useful to the user. Suggestions for some functional features that are completely useful are still turned off. For example, the following four functions: 1. Diagnosis and dosage: Do not send! Turn off the method: Open [Settings]--[General]--[About this machine]--[Diagnosis and dosage]--[Do not send]; The order of ios8 is: Settings - General - Privacy - Diagnostics and usage should be turned off: because this feature will collect all the log files on your phone due to crashes (some will record your location and other private information), and then package these records Sent to Apple. Give a chestnut: For example, if you open QQ and then flash back or crash, the system will record the crash information and send it to the Apple server. You can see the crash information by clicking [Diagnostics and Usage Data]: it is recommended to select “Do not send”. This feature is not useful to the user and wastes your traffic, and may also send your private information. Although sending "diagnostics and dosage" can theoretically improve Apple's services, the effect is minimal. Turn off without any adverse effects! 2. Diagnosis and usage based on location service: Off! Turn off method: Open [Settings]--[Privacy]--[Location Service]--[System Service]--[Diagnosis and Usage 】-- Why turn off? As with the above, this service will record your location information along with your crash diagnostic data to the Apple server. No use for the user. Turn off without any adverse effects. 3. Location-based iAd advertising: Off! Turn off method: Open [Settings]--[Privacy]--[Location Services]--[System Services]--[Location-based iAd Advertising]--Whether to close Drop: Open will send your location information to Apple, and Apple will show you ads related to your location based on your location information. About this apple also made a description as shown above. This feature is not useful to users. Turn off without any adverse effects! 4, often go to the location: off! Turn off the method: open [Settings] - [Privacy] - [Location Services] - [System Services] - [often go to the location] - off Why turn it off: It can show where you are constantly active, the time of the event, the frequency of the event, and a more detailed analysis of a person's complete behavioral trajectory. It is open and has no secrets. (It is said that male/female friends use this to check this.) It is estimated that you will ask: What will happen if you don’t turn it off? The amount... doesn’t turn off. Only these 4 functions are useless and take up resources. This article comes from [System Home] www.xp85.com