I have noticed that long clicking an SMS message brings up a menu containing a "Lock message" option. What does this do? I have a Nexus S.

  • Presumably it prevents you from deleting it, but you'd need to be clearer about what kind of messages you're talking about and what phone/app you have. – Matthew Read Nov 26 '11 at 1:13
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    @MatthewRead: Nexus S. SMS messages – Casebash Nov 26 '11 at 4:49

If you lock a message, when you delete a conversation with a locked message, every message other than the locked message will be erased from that conversation.

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On most android smartphones there is a feature that makes the phone run faster. This feature is after a certain amount of messages(on mine it's 210)it begins to delete them,locking the message also prevents it from being deleted.

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that means (normally on every phone) that it cannot be deleted, just like a locked picture on a camera. so, if you would like to keep a message safe, i suggest locking it so no accidents happen. although, when the time comes that it wants to be deleted, it can be unlocked and then deleted

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