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hi. i've just installed a nev version of android. after finishing, i found out that facebook viber messeger etc icons are deleted. when i go to the playstore and search for them,there's written that i have already installed them.but i cant even see icons.... what can i do?? an also i can't use...

when i create text message and want to use mobile smiles (dog,couple etc) text message turns into multimedia message and there appears inscription "1kb". so itmeans that i can't use it's smiles while messaging.. how can i change it? :(:'(