Unlock The AT&T Microsoft Lumia 640 LTE

How to unlock the AT&T Microsoft Lumia 640 LTE to be use in any GSM carrier.

Get your unlock code for free (If you meet the AT&T requirements) from here:

https://www.att.com/deviceunlock/

AT&T Lumia 640 LTE Microsoft Windows Mobile 10

SPECS

NETWORK Technology
GSM / HSPA / LTE
LAUNCH Announced 2015, March
Status Available. Released 2015, April
BODY Dimensions 141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in)
Weight 145 g (5.11 oz)
SIM Micro-SIM
DISPLAY Type IPS LCD capacitive touchscreen, 16M colors
Size 5.0 inches, 68.9 cm2 (~67.6% screen-to-body ratio)
Resolution 720 x 1280 pixels, 16:9 ratio (~294 ppi density)
Protection Corning Gorilla Glass 3
- ClearBlack display
PLATFORM OS Microsoft Windows Phone 8.1, upgradable to Microsoft Windows 10
Chipset Qualcomm MSM8926 Snapdragon 400 (28 nm)
CPU Quad-core 1.2 GHz Cortex-A7
GPU Adreno 305
MEMORY Card slot microSD, up to 256 GB (dedicated slot)
Internal 8 GB, 1 GB RAM
MAIN CAMERA Single 8 MP, f/2.2, 28mm (wide), 1/4", AF
Features LED flash
Video 1080p@30fps
SELFIE CAMERA Single 1 MP
Video 720p
SOUND Loudspeaker Yes
3.5mm jack Yes
COMMS WLAN Wi-Fi 802.11 b/g/n, DLNA, hotspot
Bluetooth 4.0, A2DP
GPS Yes, with A-GPS, GLONASS, BDS
NFC Yes
Radio FM radio
USB microUSB 2.0
FEATURES Sensors Accelerometer, proximity, compass
BATTERY Removable Li-Ion 2500 mAh battery
Stand-by Up to 864 h (2G) / Up to 864 h (3G)
Talk time Up to 26 h 30 min (2G) / Up to 17 h 30 min (3G)
MISC Colors Glossy cyan, Orange, White, Matte black
Price About 120 EUR
TESTS Display Contrast ratio: 1034 (nominal), 2.563 (sunlight)
Camera Photo / Video
Loudspeaker Voice 70dB / Noise 65dB / Ring 75dB
Audio quality Noise -93.1dB / Crosstalk -93.2dB
Battery life
Endurance rating 76h

Видео Unlock The AT&T Microsoft Lumia 640 LTE канала Su Amigo Alex