You need a working system, install from google play flashify, and install it-it is the safest way, otherwise if you do not known how to identify the recovery partition you can brick your phone."You must install last TWRP."
Thanks for the answer.
Can you explain me how to install TWRP, please? The only thing i can do is to enter in fastboot mode (volume up when i release the power button).
Appreciate the help.