The Samsung Galaxy J2 power button issue refers to difficulties or malfunctions experienced with the device's power button, affecting its ability to turn the device on or off, lock the screen, or access essential functions. This problem may manifest as a button that feels stuck, unresponsive, or requires excessive force to activate. Users may encounter delays, inconvenience, or frustration in performing basic tasks due to the unreliable performance of the power button. Seeking professional repair services may be necessary to diagnose and resolve the underlying cause of the issue, ensuring the device's functionality is restored to optimal levels.