Xperia M2 cyanogenmod

• Get the unlock code from sony
• As cyanogenmod describes for the Yuga, power down the xperia, the hold volumeUp while inserting USB cable, and on the computer type:

# fastboot getvar version
version: 0.5
finished. total time: 0.003s

• Then unlock using:

# fastboot -i 0x0fce oem unlock 0x012345678ABCDEF
...
OKAY [  1.133s]
finished. total time: 1.133s