DISCLAIMER I'm not responsable in any way of any possible soft or hard brick of your phone, or whatever may happen to it! REBOOT TO FASTBOOT Turn off your phone Turn on your phone by pressing the Power button and Vol- Connect it to your PC via USB DOWNLOAD AND INSTALL ADBIf you have ADB already installed you can skip this step. Go to This Discussion Download the package Run it as Administrator Answer always Y or Yes to all the questions Wait for the installation to finish Done! You can find all the necessary in C:\adb DOWNLOAD THE CUSTOM RECOVERYHere are some useful links: TWRP 2.8.7 Merged Partitions TWRP 2.8.7 Unmerged Partitions CWM 18.104.22.168 Unmerged Partitions IF YOU CHOOSE TWRP MAKE SURE TO HAVE SYSTEM 1 ACTIVE, BECAUSE THIS RECOVERY FLASHES ONLY ON THAT SYSTEM AND YOU CAN'T CHANGE THE ACTIVE SYSTEM WITH TWRP (Thanks to @Jocke for this information) These links are mirrors found in the italian forum (Thanks to @SkiFire13). I'm currently using the version for merged partitions and it works fine. Now rename the file you have downloaded to "recovery.img" and move it to C:\adb UNLOCK THE BOOTLOADER AND INSTALL A CUSTOM RECOVERY Click on Start > Computer > C:\ Open the adb folder While pressing SHIFT right click in an empty spot in the folder and select "Open command windows here" Use this command to check if the phone is correctly plugged-in. If it outputs a hexadecimal string the phone is correctly connected (Look at the image below). Code:fastboot devices In order to unlock the bootloader use this command: Code:fastboot oem unlock To flash the recovery use this command: Code:fastboot flash recovery recovery.img Reboot to Recovery FINISHNow you have a phone with a custom recovery and an unlocked bootloader.