Schturman,, OK, I got the clean backup in the right place and did Tweak Z now all tweaks are gone and I have things to original state. The PROBLEM of clock not showing on standby screen remains once I take phone out of pocket or when having it face down for a bit, also, I noticed the standby screen is slightly lit in a dark room but without the clock displaying unti I double click again.
devel-su it will ask your root password, write: rootme apt-get install --reinstall system-ui-screenlock-nokia