I solved the problem by redownloading and reinstalling all kernel packages, now boots ok, IDK what was wrong but everything looks the same, and yes i tried renaming before .item file after i tried to add your suggested line into working .item file i can't boot it shows that maemo is loading and i waited few minutes nothing, just rebooted and removed that line. I think i something missing to use this line in .item so i don't need it, but would be really interesting to know what it does exactly

P.S Thanks for help!