Step 1: Clean and use the original charger/power adapter. Different chargers deliver different amounts of power. Overcharging or undercharging the device can cause it to charge slowly (or not at all) or even damage the battery and charging abilities of the device. If you're not using the original charger, these troubleshooting steps may not resolve the issue. Check and blow into the device's power port to remove any lint or dust that may be preventing the device from charging properly. Step 2: Plug the device into a working wall outlet. Step 3: Depending on the state of your device, do either (A) or (B) below: (A) If your device turns on and has enough charge to current stay on, check for the latest Android OS and restart your device. Go to 'Settings' > scroll down to 'System' > click 'About phone' (or tablet) > click 'System updates.' Let device update and restart. If your device is up to date, manually power the device off and then back on. If your device isn't charging after powering the device on, go...