Flash Sony Xperai M2 LTE DUAL Aqua D2303 D2302 D2305 D2306 D2403 D2406 Lollipop 5.1.1 flashtool
flash+flasher D2303:
https://goo.gl/bEisRN
flash+flasher D2302:
https://goo.gl/nRgTR3
flash+flasher D2305:
https://goo.gl/HzB1Ca
flash+flasher D2306:
https://goo.gl/bTwdHe
flash+flasher D2403:
https://goo.gl/hFwEk3
flash+flasher D2406:
https://goo.gl/D7JbQy
How to install necessary Sony drivers: https://goo.gl/kk3FyU