What exactly do you want to do? Do you want to wire money into your account?
If you are using personal mobile banking then this type of transfer is not permitted. Note only business mobile banking allows you to transfer money quickly between your accounts (Whether current, saving or standard).
This seems to work for me just fine (using the latest version of the app on android)
-> select (=touch on) the relevant savings account from the overview page
-> click on "transfer between accounts"
-> select your current account
-> type in the amount you want to transfer
That's it.
Which of those steps are missing for you?
Are you trying to move money from a notice account maybe?