Keep device in normal temperature

Check if the LED blinks in red when you connect charger to the device, it indicates the charging temperature is out of normal.

Charge the device in its charging temperature (usually 0 ~ 45℃).

Change Smart Charging mode

The Life-X mode of Smart Charging feature is for prolonging the battery lifetime by stopping charging around a specific voltage.

If you want to charge the device to 100%, change the Smart Charging mode from EmKit > EmSettings > Smart Charging.

Change to approved charger

An unapproved charger may cause damage to the device.
Replace the charger to approved one (enveloped in the standard package) and try to charge again.

Replace the battery

(Android 9 and above) Check the battery age from EmKit > EmHealthReport.
If the battery age indicates Warning or Bad (dismission), the battery should be replaced.

Install the new battery and try to charge it again.

Contact local reseller

If you cannot solve the problem with above steps, contact your local reseller to proceed repair or analyze the issue.