I can't install any application on my android device !oi

[Parth navinchandra patel]

I had losted my built in applications package installer,Gallery ,and messaging.

 

[musical marv]

I had losted my built in applications package installer,Gallery ,and messaging.

What phone do you own?

 

[hang-the-9]

Exactly how did you "lose" those programs? You will likely need to do a restore to factory defaults and maybe a ROM re-load.