Charging issues¶
The device state of charge is represented by a red notification LED.
See also
A number of problems can prevent the phone from charging. These include a poor cable connection, insufficient power, thermal regulation issues and discharged batteries. This page describes these problems and some of the diagnostic tests that can be used to overcome them.
Inadequate power supply¶
Ensure that you use a power supply capable of providing at least 10 W of power. The OEM power supply supplied with your phone is recommended.
Poor cable connection¶
Power is supplied to the phone using a USB-C cable. Although this connector can be inserted into the socket on the phone in either orientation – it can be flipped over – some cables do not supply power in both cases. If you experience problems with charging, it can be worth flipping the plug over and inserting it into the phone in the other orientation.
Discharged battery¶
If the battery is completely or almost completely discharged, the phone will not be able to stay powered for long enough to manage the charging process. Follow the recharging procedure below.
Other issues¶
Problems due to thermal regulation and insufficient power can be diagnosed by examining the LED indicator light when a power supply is connected to the phone. See LED indicator colors for further advice.
Recharging procedure¶
If your phone fails to charge, or discharges while connected to a power source during use, follow these steps:
Unplug the phone from the power supply.
Enable all kill switches to cut power to the modem, WLAN, camera and microphone.
Press the Volume Up button and hold it.
Plug the provided USB-C charger into the phone. The indicator light should flash red.
If the light remains off, try repeating steps 1-5 but with the USB-C cable plugged into the phone in the opposite orientation.Carefully insert the battery.
The indicator light should be a constant red and should not flash.
Wait 1 second then release the Volume Up button.
Unplug any USB device that might be connected to the phone
Wait at least 1 hour for the battery to charge
Press the Power button untill the green indicator light shows and then release the Power button