![]() Please check if the AC adapter plug is loose (marked in the below image: A-power cord plug, B- outlet side plug, C- NB side plug) or try to plug into different outlets.Please be sure to use AC power adapter and AC power cord with the proper specification supplied by ASUS.Solution #1: (Power light is OFF) "Power light is OFF" means there's no power supply from the ac adapter or major components might be abnormally working and the device fails to boot. (marked in the red square in the image below) The power light is the indicator why your laptop does not power on. Press the Power button and Image appears when the notebook startup but NO image (blank) after it enters desktop.Press the Power button and there is no response on the screen, and Power light is ON.Press the Power button and there is no response on the screen, and Power light is OFF.→ please refer to Solution #1.When you cannot turn on the laptop, you can refer to the solutions below based on your situation : To provide you more detailed instruction, you can also click ASUS Youtube video link below to know more about Notebook cannot power on and shows black screen Val batteryPct: Float? = batteryStatus?.Troubleshooting - Notebook cannot power on and shows black screen You can find the current battery charge by extracting the current battery level and scale from The rate of your background updates if the battery charge is below a certain level. In some cases it's also useful to determine the current battery level. Initiate a background update-so you should register a BroadcastReceiver in your manifest to listen for both events by defining theĪCTION_POWER_CONNECTED and ACTION_POWER_DISCONNECTED within an intent filter. Running-particularly as these events should impact how often you start your app in order to It's important to receive these events even while your app isn't The BatteryManager broadcasts an action whenever the device is connected orĭisconnected from power. Monitor the charging state for changes and alter your refresh rate accordingly. The charging status can change as easily as a device can be plugged in, so it's important to Typically you should maximize the rate of your background updates in the case where the device isĬonnected to an AC charger, reduce the rate if the charge is over USB, and lower itįurther if the battery is discharging. Int chargePlug = batteryStatus.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1) īoolean usbCharge = chargePlug = BatteryManager.BATTERY_PLUGGED_USB īoolean acCharge = chargePlug = BatteryManager.BATTERY_PLUGGED_AC Status = BatteryManager.BATTERY_STATUS_FULL Int status = batteryStatus.getIntExtra(BatteryManager.EXTRA_STATUS, -1) īoolean isCharging = status = BatteryManager.BATTERY_STATUS_CHARGING || Val acCharge: Boolean = chargePlug = BatteryManager.BATTERY_PLUGGED_AC Val usbCharge: Boolean = chargePlug = BatteryManager.BATTERY_PLUGGED_USB Val chargePlug: Int = batteryStatus?.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1) ?: -1 || status = BatteryManager.BATTERY_STATUS_FULL Val isCharging: Boolean = status = BatteryManager.BATTERY_STATUS_CHARGING Val status: Int = batteryStatus?.getIntExtra(BatteryManager.EXTRA_STATUS, -1) ?: -1 We'll be handling updates in a later section so it's not necessary. You could pass in an actual BroadcastReceiver object here, but Null as the receiver as shown in the next snippet, the current battery status intent is The BatteryManagerīroadcasts all battery and charging details in a sticky Intent that includesīecause it's a sticky intent, you don't need to register a BroadcastReceiver-by simply calling registerReceiver passing in Start by determining the current charge status. ![]() Similarly, you can check the battery charge level, potentially reducing the frequency of-orĮven stopping-your updates when the battery charge is nearly exhausted. Conversely, if the device is discharging, reducing your update rate helps Is negligible, so in most cases you can maximize your refresh rate whenever the device is connected The impact of performing updates while the device is charging over AC The battery-life impact of performing application updates depends on the battery level andĬharging state of the device. Updates on battery life, checking the current battery level and charging state is a good place to When you're altering the frequency of your background updates to reduce the effect of those
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