Can't upgrade to final 17.01

I've succesfully installed lede 17.01 rc2 in an ubiquity uap ac lite and all was working ok. Then I upgraded to the final release but kernel on device remain the old one (4.4.47 and not 4.4.50) and the wireless interfaces disappeared. How can I flash correctly the final release? (I used luci interface method and command line methods with no luck...). Thanks.

I think you should use sysupgrade of course to upgrade to a newer release.