Hunter Parker

My Samsung SPH-M360 won't pick up my voice when talking into it anymore. What could be going wrong?

When I plug my phone in, the battery will not charge and the phone will not turn on, no matter how long I charge it....

It is likely that the logic board is malfunctioning. It could be anything from a faulty connection to a burned out circuit. Since the electrical components of this phone come pre-soldered onto the logic board, the only way to truly remedy this is to replace the logic board. See how on the logic board replacement guide here.