Default Bootloop after edit build.prop

Hi i've edited the build.prop (i've added a string qemu ecc... for the navbar i don't remember) and after reboot i got stuck in a bootloop (i think)
I have access to the recovery (cwm) and got a pc.
Device is rooted with latest paranoid and android 4.4.4
If there is a way for unblock it that not include wipe data or something is better.

(I know certainly is very simple but i'm very noob)

sorry for my english


EDIT:
i've solved bootloop by reflashing rom (i had not backup of any .zip rom so i pushed the latest by "adb push" and then flashed it). I've not lost any data.

sorry for useless post