*** YOU NEED TO REGISTER ON THE FORUM BEFORE YOU CAN ACCESS THE DOWNLOAD LINK ***
INSTALLATION INSTRUCTIONS
http://www.xperiablog.net/2015/03/17/guide-to-installing-xperia-lollipop-using-xperifirm-and-flashtool/
- Open link above and skip to the section entitled “FlashTool steps”.
- As you have already downloaded the FTF firmware file, skip to the section where you need to “Flash device”.
XPERIA FIRMWARE DETAILS
This is official stock Sony Xperia firmware.
Model: Sony Xperia M2 (D2303)
Firmware version: 18.6.A.0.175_R2C
Region: Algeria (GNT Telecom DZ) [1291-4870]
Android version: 5.1.1

Xperia M2_D2303_18.6.A.0.175_Algeria _GNT Telecom DZ 5.1.1
Sony Xperia M2 (D2303) Android 5.1.1 firmware - GNT Telecom DZ Algeria