Thanks for your both answers. I was looking for a possible fix without rooting and installing a custom rom, for now...
I'm totally newbie on recovery mode flashing, and i'm still afraid to do it even in my X8 and get it bricked! Now, as badly as i'd love to have custom roms in mine Galaxy Note, Nexus 7 and Infinity, you can imagine, if i'm afraid to brick a $50 device, how i feel about all others..
Galaxy Note 16GB+32GB
Asus Infinity TF700 32GB+64GB
Samsung NP530U3C-i5 3317U|HD4000|8Gb|500Gb
Samsung NP550P5C-i7 3610QM|630m|16Gb|1TB