How to Update Android Without Computer
You can easily update the Android version installed on your phone without using any Computer and do it with your phone over the air (OTA).
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You can add people to see documents in your Google Drive account. Learn how to share Google Drive with other users and set different permissions (edit, view, comment) by doing as follows:
1. Open "Google Drive"
2. Find the folder or file you want to share to other users
3. Without opening the folder or file, tap the Grey arrow icon right to the name
4. Tap the Add People icon on the top right
5. type the Email address of the person to share
6. Choose the permission level: Can Edit, Can Comment, Can View
7. Hit "Add" to finish the process
** To Check the Permission for your Files and Folders in Google Drive, see: Who Has Access to Google Drive