One of the last updates introduced a bug in the ScanSetup.pyo under /usr/lib/enigma2/python/Screens/.
It affects ONLY terrestrial scan, not SAT.

The bug consists of two facts:
1) A prescan is performed like (if I remember well, in vuplus OE3 images). This makes useless possible optimized terrestrial.xml files.
2) What counts most: after the prescan you get always an error.

I used a ScanSetup.pyo from previous releases and both bugs were solved.

Regards.
ViX-5.4-ManualScan-Complete-1.jpg
ViX-5.4-ManualScan-Complete-2.jpg