Dimensions - 137 x 74.6 x 10.5 mm
Weight - 144g
Display � 5.0 inches
Resolution - 540 x 960 px (~220ppi)
CPU - 1.3GHz Quadcore Cortex A7
GPU � Mali 400MP2
Chip � MediaTek MT6582
RAM � 1GB
Internal Memory � 8GB
MicroSD - Up to 32GB
Single SIM
GPRS - EDGE - HSPA
Bluetooth � Version 4.0
WiFi - 802.11a - 802.11b - 802.11g - WiFi Hotspot - WiFi Direct
Primary Camera � 5 MP with LED Flash
Secondary Camera � 2 MP
Battery - 2300mAh
Learn how to unbrick/flash or upgrade this device using flashtool from here
Note
Follow the instructions on how to flash the device carefully from the link above
I will not take responsibility on whatever may happen to your device.
Make sure you are downloading the exact ROM of the device you want to flash because
Flashing a wrong rom will make the device completely dead
(can't power on, can't charge and will not be detected by a computer)
SONY XPERIA E4 D2105 STOCK ROM/FIRMWARE
Android 4.4.4 KitKat
E2105_24.0.A.5.14.RU
Size - 1.1GB
Get other sony xperia roms from here