I can't install "Unrestricted-system-ui".
Inception method and Open mode method - both won't work (I still can't install the "system-ui_1.3.2-1+0m8_armel.deb" file).

Can you please help me and tell me what to do?

EDIT: I just enabled battery percentage in status area (this is what I wanted to do). But now I have a strange clock launcher in the status bar:



Can anyone help me to remove it?

EDIT 2: Problem solved...

Thank you!!