Hello!, I am new in this, but I think my S4 active At&t model (SGH-i537) is hard brick because for what i have read it has all the things a HB phone has. Although I didnt try downloding or change anything on it (I say this because everybody says that you get hardbricked when you try to install roms or chane something else of you phone). The battery was low, I didnt chager it at night so when I waked up it had already turned off (discharged).... .after that I tried to charge it, but didnt work, I tried diffrent chargers and cables and even a new battery and a complete charged one and nothing, the pc wont recognize it, and i cant get into recovery or download mode, I have tried everything, i even bought a usb jib and didnt work on it (and it was not the usb because i tried on another phone and it worked). I dont know what else to do. would It be a motherboard problem - hardware? if so, .. changing it (buying a new one) its the only solution? For what i have read they are expensive, i think it would be better to bu a new phone. please help me!!! the phone it seems like new and i can stand that it doesnt work, i used all my saving to buy it!... =(