if It could help… here is the link
https://glarnump.wordpress.com/2017/05/16/raspberry-pi2-et-tontec-3-5-par-ubuntu-mate/
I just did it so I share 
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if It could help… here is the link
https://glarnump.wordpress.com/2017/05/16/raspberry-pi2-et-tontec-3-5-par-ubuntu-mate/
I just did it so I share