Unknown Error 1603 Code appears during the restoration procedure of your iDevice. There are many solutions to this error code, and we provide them to you.
Unknown Error 1618 code appears when you are trying to donwload more than two files at the same time (or software download). Read our FREE solutions for it.
Unknown Error 13019 code appears to your iPhone when it is unable to sync through iTunes. Read our article and find out how to solve it with a few steps.