My HP Prime G2 stuck

[komame]

From your description, it seems that the On key is indeed stuck. It appears as if it's being continuously pressed. This is most likely a mechanical issue or something is blocking the key from underneath (dirt, a crumb, etc.). If your device is new, it should probably be repaired under warranty. When you press the On key, do you hear the characteristic 'click' sound like with other keys? Or is the press rather silent?