Removing or bypassing FRP (Factory Reset Protection) on Marshmallow (6.0)
I don't know if this solution will work on a different phone model, but let me explain what I did:
First I tried to get the phone being detected by the computer, so I downloaded the MTK drivers (preloader VCOM drivers) and plugged the phone in META mode with MAUI META (a tool that connects mtk to META mode and do many other interesting stuffs, repairing IMEI for example). Then downloaded ADB (the best I found is "Minimal ADB and Fastboot")
With that i could connect to the phone and hidden the setup wizar. this post on reddit helped me with the commands.
From the command line:

adb shell
 cd /system/priv-app/


ls (to list all installed applications)
then:

pm hide &lt;package name&gt;


You would list all the packages with pm list packages first if you don't know the package name .

An alternative way is to use a software called Debloater