If fast charging is not working, check your settings to see if the fast charging option is enabled. 01 Go to ‘Device care’ in ‘Settings’ and click ‘Battery’ 02. Tap ‘See more’ to go to Settings 03. Under ‘Charging’ category located at the bottom, check if ‘Fast cable charging’ and/or ‘Fast wireless charging’ is enabled ※ The fast charging feature cannot be toggled on/off while charging. You cannot fast charge your phone using a regular charger. ※ If fast wireless charging is not working, check your settings as listed above and make sure you are using a fast charger.

If the temperature in your environment is too high or too low, the device’s safeguard could slow down its charging. For stable, fast charging, we recommend charging at room temperature.

If you are charging with a USB cable connected to a computer, the voltage will be less than that of an authentic Samsung charger, resulting in a slow charge. For the best results, we recommend using an authentic Samsung charger.

If there is a foreign object stuck inside the USB port or the cable, the device’s safeguard may shut off charging for its protection. With a soft brush, remove the foreign object and try charging again. For wireless charging, if there is a foreign object located between the device and the charger, the charging may be slowed. Remove the foreign object and try charging again. If there is any moisture detected inside the USB port or the cable, the device’s safeguard will notify you that moisture is detected and will shut off charging. Try again after the moisture is removed. ※ If moisture is detected (water drop icon), unplug the charger from your device. Charging with moisture can lead to USB port corrosion and damage to the device. If the USB port corrodes, visit your nearest service centre for device repair.

Charging may be slowed if the cable is not properly connected to the USB port, if the connector pin is altered due to long periods of use or if the surface is corroded due to a foreign object. If charging continues in this state, the device may be damaged or may overheat. We recommend that you have it replaced.