How to Activate Viber for Android
If you are using Viber for the first time, you need to set it up and activate it with your phone number. To activate Viber for Android phones and ...
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Sometime you need to close some application to free some memory. Android gives you some ways to close such apps
Setting > Applications > Manage Application
Select each application and tap on Stop
One of the advantages of these apps is the ability to close some applications at the same time