iPhone does not support creating contact groups directly in the address book application, but similar functions can be achieved through the following methods: 1. Use the "Group" function in the address book application, click "Edit" > "Add Group" to create a custom group; 2. Add each contact to the corresponding group by editing it; 3. If you need to send a group message, you can create a new multi-person conversation in the information application; 4. Use iCloud or Gmail to synchronize tagged groups to facilitate the management of a large number of contacts on the computer. These methods are used in conjunction with efficient management of contact groups.

TocheckifaniPhoneisunlocked,1)gotoSettings>Cellular>CellularDataOptionsandlookforlabelslike“Unlocked”or“NoSIMrestrictions,”2)insertadifferentcarrier’sactiveSIMcardandseeifthephoneacceptsit,3)usetheIMEInumberononlinetoolslikeIMEI.infotocheckunlo

Determining the depreciation value of iPhone requires multiple factors and comparing different platforms. 2. The first choice is Apple's official replacement plan, which has a simple and transparent process, but the final valuation must be based on the actual condition of the equipment. 3. Third-party websites such as Gazelle, Swappa, etc. may provide higher quotations, but you need to pay attention to describing the real situation and avoiding the charging trap. 4. The core factors affecting value include model and storage capacity, equipment status, operator lock status, etc. Small problems may also affect the quotation. 5. If you pursue higher returns, you can choose to sell privately, but you need to weigh the time cost and transaction risks.

Migrating contacts can be accomplished in three ways when replacing a new iPhone: First, using iCloud synchronization is the most worry-free, ensuring that the old phone has turned on the iCloud address book backup, and the new phone logs into the same account and enables synchronization; Second, using AirDrop is suitable for a small number of contacts to transmit. After setting up AirDrop visibility on both phones, sending and receiving them through the share button; Third, with the help of computer relay, both Mac or Windows, synchronizing contacts through Finder or iTunes and replacing or merging data. Select the method that suits you and pay attention to your account and permission settings to easily complete the migration.

The RAM of iPhone cannot be cleaned manually, but the following methods can be used to free memory to improve smoothness: 1. Close the background application: Double-click the Home button or slide from the bottom to pause and close the card; 2. Restart the phone regularly: Refresh the system status once a week; 3. Reduce background refresh: Enter Settings → General → Backend App Refresh to limit the number of applications; 4. Avoid running multiple high-resource applications at the same time, and use them in stages to reduce memory pressure. These operations can effectively alleviate the lag caused by the tight memory of iPhone.

Uninstalling an app on your iPhone does not mean completely deletion, and users can make room while retaining data. If you want to uninstall the app and keep the data, you can go to "Settings" → "General" → "iPhone Storage Space" → Select App → Click "Uninstall App"; if you want to completely delete the app and data, you can long press the icon on the home screen → click "Delete App" → confirm the deletion. The difference between the two is that after uninstalling, reinstalling can still restore the original content, while deleting will clear all data and you need to start the next installation. Before operation, you should clarify the requirements to avoid accidentally deleting important information.

"SharedwithYou" inSafari shows links shared by others through Apple apps such as iMessage. Its working principle includes: 1. Automatically crawl the links in Messages; 2. Display it in the Safari start page or bookmark menu, including the sharer and time; 3. Recommend relevant content based on browsing behavior; 4. Support cross-device synchronization. The advantage is that it facilitates quick access to important content shared by others, such as recipes, product reviews, etc., and you can directly click to open the link. Management methods include: 5. Turn off the function or clear a single entry. This feature is suitable for iPhone, iPad and Mac.

Using the iPhone's file app for file management is very simple and suitable for daily tasks. 1. Organize files and folders: Folders can be created through the "New Folder" function, and supports renaming, moving or copying files. They can also be sorted by name, date, etc. 2. Access iCloud and other cloud services: You can connect to iCloudDrive, GoogleDrive, Dropbox, etc., manage the displayed services through "Browse>Location>Edit", and directly save files to cloud storage. 3. Open and share files from other applications: Select the application to open the file through the share icon at the bottom, or share files through email, message or AirDrop. In short, although its functions are limited, its basic