Original topic:

Galaxy s21 ultra 5g

(Topic created on: 11-29-2023 08:19 PM)
Active Level 1
Galaxy S
After the last update my phone super fast & fast charging not working. Anyone help to solve the problem. 
1 Comment
Community Manager
Galaxy S

We apologize for any inconvenience this may have caused you. Please follow the below steps that may solve the issue:

The first step is to make sure the fast charging option is enabled

➊ Go to "Settings", then tap "Battery and device care"

➋ Tap “Battery”

➌ Tap “More battery settings”

➍ Tap the switch to activate "Fast charging", "Super fast charging" or "Fast wireless charging"

Next, make sure you use a suitable adapter and cable
Different types of chargers have varied power outputs. For optimal performance, we recommend using a Samsung authorized fast charging adapter.


Adaptive Fast Charging

- Samsung chargers that support 9V-1.67A (15W) power output show the ‘Adaptive Fast Charging’ text with a charging icon


Super Fast Charging

- Samsung chargers that support 9V-2.77A (25W), 15V-3A (45W), or 20V-2.25A (45W) power outputs show the ‘Super Fast Charging’ text with a charging icon


Samsung does not guarantee the compatibility of third-party chargers.

Follow these steps if your fast wireless charging is not working
For optimal performance, use a Samsung authorized fast wireless charging pad and/or the in-box adapter.


- Fast Charging 1.0 needs the adapter which supports above 15W power (max 9W charging power)

- Fast Charging 2.0 needs the adapter which supports above 25W power (max 15W charging power)


Some models may only work with the in-box adapter. For more information, please check the enclosed manual or the samsung.com product information when purchasing your device.

If the issue still persist, we kindly request you to submit an error report to our dedicated technical team. Your cooperation in this matter is highly appreciated. Please follow the outlined steps below to initiate the error reporting process:

Long press the Samsung Members icon on the Apps screen and Tap Error reports.
Tap OK on the agreement popup to send system log data.
Select Symptom category.
Describe the problem in detail and SEND.