(Refer to Q How can I perform a factory reset on my phone & Q How can I upgrade my device). Go into a dark area or room to make sure that this not the case.ĭ) Make sure the battery percentage is higher than 10%Įnable “Adaptive brightness”: go to “Settings”->“Display”->enable “Adaptive brightness”.Įnable “Battery saver” mode: Swipe down to access the quick settings from any screen, and then enable “Battery saver.Į) Try to reset or update your device. If it is because an app failed to open or is displaying a black screen after powering-on, uninstall the app and check whether the problem is solved.Ĭ) The screen may appear black if the device is in battery save mode, running low on battery or if the brightness is turned down. If yes, please back up your data and take your device and proof of purchase to our repair center to get more professional technical assistance.ī) Please restart the phone. A) Check whether there is any damage to the screen.
