Dimensions - 146 x 72 x 7.3 mm
Weight - 152g
Display - 5.2 inches
Resolution - 1080 x 1920 px (424ppi)
CPU - 2.5GHz Quadcore
GPU - Adreno 330
Chip - Qualcomm MSM8974AC Snapdragon
RAM - 3GB
Internal Memory - 16GB
MicroSD - Up to 128GB
Dual SIM
GPRS - EDGE - HSPA+ - UMTS - LTE Cat 4
Primary Camera - 20.7 MP with LED Flash
Secondary Camera - 2.2 MP
Battery - 3100mAH
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 Z3 DUAL D6633 STOCK ROM/FIRMWARE
Android 5.1.1 Lollipop
Language - All
Size - 1.6GB
Android 5.0.2 Lollipop
Language - All
Size - 1.4GB
Android 4.4.4 KitKat
Language - All
Size - 1.13GB
Get other sony xperia roms from here
ADS HERE !!!