Hello all,
I absolutely need to root my phone (i bought it only to install andrax over it

So now i know more about this stuff (and i'm begining to reget buying it)
Its a spreadtrum unisoc device powered by Unisoc SC9863A.
Ok, i got adb & fastboot tools with adequates drivers (adb & fastboot).
I understood the bootloader need to be unlocked by an adequate tool (the fastboot modified version).
So ok , i'm using a linux into virtualbox, everything work ok (adb devices Ok , fastboot devices Ok).
But i can't unlock the bootloader with it, probably because the private key bundled with the tools is not enough for my wiko y80.
So , is there an other way to root it ??
I get some interesting files gathered over internet , it seems to be some private keys.
But i can't use them with fastboot too

Got any idea ?