Before revision: While most phones include the notification LED light on the front side, some smartphone manufacturers like LG or Nokia have also integrated it into the power button, HMD Global patents power button notification LED while some phones from Motorola, Xiaomi, Razer or ASUS have their brand logo on the back side of the phone, serving as the notification light.
After revision: While most phones include the notification LED light on the front side, some smartphone manufacturers like LG or Nokia had also integrated it into the power button, HMD Global patents power button notification LED while some phones from Motorola, Xiaomi, Razer or ASUS used to their brand logo on the back side of the phone, serving as the notification light.