Apple Inc. combines tablet PC, cellular Phone, iPod and Digital Camera to give world a new innovative discovery as iPhone. iPhone basically a multimedia internet-enabled mobile phone developed and marketed by Apple Inc. iPhone contains some more features as virtual keyboard, multi touch screen, internet browsing and e-mail including voice mail.
Some people still in confusion that how it works and what is it. Basically, iPhone has multi dimensional use because of its enhanced features. iPhone works on quad-band cellular phone technology with GSM standard. People using iPhone growing rapidly day by day due to its convenience and reliability but as other electronic systems there is no guarantee of 100% reliability. While you are working with iPhone you may get some errors as following:

->“unknown error message (6)” on connecting with itunes.

->“please connect to itunes” while restoring.

->“Activate iPhone-connect to iTunes” while installing iActivator.

->There is again a possibility to get a message like “The iPhone could not be restored. An unknown error occurred. Error 1603.”