Connect your device via USB, enable Developer Mode in:
“System-Settings->About This Phone->Developer Mode”
…and run (from your PC, make sure to have the phone screen unlocked, else adb will refuse to let you in):
adb shell android-gadget-service enable ssh
Copy your public key to the Phone:
adb shell mkdir /home/phablet/.ssh
adb push ~/.ssh/id_rsa.pub
/home/phablet/.ssh/authorized_keys
adb shell chown -R phablet.phablet /home/phablet/.ssh
adb shell chmod 700 /home/phablet/.ssh
adb shell chmod 600 /home/phablet/.ssh/authorized_keys
Now you can look up your IP on the phone and use ssh to connect:adb shell ip addr show wlan0|grep inet
ssh phablet@<IP from above command>