install fastboot tool

sudo apt-get install android-tools-fastboot

unlock the bootloader

Press volume down + power button to boot into bootloader mode
or:

adb reboot bootloader

unlock (ALL DATA WILL BE REMOVED!):

sudo fastboot oem unlock

download CWM (6.0.4.3)

wget -O /tmp/clockworkmod.img https://www.dropbox.com/s/73llj8n6g2vat3o/recovery-clockwork-touch-6.0.4.3-flo.img

install CWM

sudo fastboot flash recovery /tmp/clockworkmod.img

fix loop loading animations

in bootloader mode:

sudo fastboot format userdata
sudo fastboot format cache

wow, wow, wow =)