y suggest some other method for d780ReplyDeleteAnonymousSeptember 13, 2011 at 9:16 PMhi, i have been using samsung c3322 duos. its a very good phone with all its features except with installing apps. i tried putting apps through pc and also directly through phone browser. but every time when i try to install i will get a msg downloaded jar file is invalid. i just need to install opera mini. anyone