Well... I had a backup of original fmtxd from PR1.2, and I downloaded again unlocked fmtxd from http://jacekowski.org/Maemo/FMTXD And there was an fmtxd of PR1.3. Neither original fmtxd of PR1.2 nor unlocked fmtxd from http://jacekowski.org/Maemo/FMTXD can run. When I choose frequency like 90, and click save, it says "Unable to use...". So your words are a riddle to me.