well what apps are you trying to use? what rom are you running?
a funny blurb about something goes here.
Verizon Samsung Galaxy S4: (ROM: haven't been on one for longer than a week) (Recovery: Safestrap 3.72)
Barnes & Noble Nook Tablet: (ROM: CyanogenMod 11 [milestone builds]) (Recovery: CWM)
Previous Devices: LG Vortex, Samsung Fascinate