Never use firm 1.5 it was not an official release, bricked a few of my readers, you can downgrade it to 1.3 again and try from there. Firm 1.4 should be ok.
Never use firm 1.5 it was not an official release, bricked a few of my readers, you can downgrade it to 1.3 again and try from there. Firm 1.4 should be ok.