Incomplete device software

Hello,
A friend of mine tried to install a hybrid OS onto my phone, as he'd done the same on his and recommended it to me. However, he went too fast and didn't look at the instructions properly, and it didn't work, so we re-installed the original OS, but there have been software components missing ever since.
We've re-installed the original OS several times in slightly different ways, and the phone works, but always with the same components missing, notably the email setup wizard.
Has anyone experienced this before? Do you have any suggestions?

Thank you

Before you install an OS you should look if you already have marked the Email-Setup wizard if not it will leave the setup out.