Dustproof and water-resistant, the Galaxy S6 active has a rugged design that's engineered for outdoor activities. TROUBLE SHOOTINGS STEPS IF THE SCREEN IS NOT WORKING: by manually restarting the phone. taking out the battery and putting it back in. doing a master wipe also would solve the issue.

• 2G: GSM 850 / 900 / 1800 / 1900, 3G: HSDPA 850 / 1900 / 2100, 4G: LTE 2100(B1) / 1900(B2) / 1800(B3) / 1700(B4) / AWS(B4) / 850(B5) / 2600(B7) / 900(B8) / 700(B12) / 700(B17) / 800(B20) / 700(B29) / 2300(B30)
• 5.1-inch Super AMOLED Capacitive Multi-Touchscreen
• Android v5.0.2 (Lollipop), Quad-Core 1.5 GHz Cortex-A53 & Quad-Core 2.1 GHz Cortex-A57 Processor, Chipset: Exynos 742, Mali-T760 Graphics
• 16 Megapixel Camera (2988 x 5312 pixels) w/ Autofocus, LED flash + Front-Facing 5 Megapixel Camera
• Internal Memory: 32GB, 3GB RAM

2G: GSM 850 / 900 / 1800 / 1900, 3G: HSDPA 850 / 1900 / 2100, 4G: LTE 2100(B1) / 1900(B2) / 1800(B3) / 1700(B4) / AWS(B4) / 850(B5) / 2600(B7) / 900(B8) / 700(B12) / 700(B17) / 800(B20) / 700(B29) / 2300(B30)Samsung