@HellFlyer
Thanks a lot, finally I have it!
I had tried it, but with a little difference : "components: main" instead of "free", and that was because of this :
http://download.videolan.org/pub/vid...mantle/Release

@slender
Don't worry. I don't need to know how to backup and flash my device from now, internet is always in access for these problems. and next time when an amateur like me asks a question, if you know how to help, help her/him, if not, please just don't try to make her/him disappointed! Thanks.