One ui 6.1 on Samsung S21

[Shanky-16]

After 6.1 ui update, the battery is draining more quickly as compared to previous version of 6.0 ui, other than that i can see some lag when using mobile data, its minor but it is present

[goodthings]

Kindly reset factory data with backup then try to it's again. If you like please accept as a solution it's help to others users also, click on 3dots in my reply section and click on accept solution. Thanks.

[Shanky-16]

Is it really a solution or you are just saying

[goodthings]

After a major update reset factory data with backup is better for device performance, so try to it's. Thanks.

[o1eroy]

After any big update (if above 1gb size), it's recommended to do factory reset after resetting wipe cache clean. But there's a catch. If the user did update through smart switch, then there is no need to reset the device onle wipe cache sufficient

[Umangmathur]

Do factory reset it will get okay.
If you like my solution pls accept my solution for this comment

[cs_member10]

Dear Samsung Member,

Greetings from Samsung Customer Support!

As per your concern, we would request you to kindly perform the following steps to resolve your issues. However, we are taking your valuable feedback regarding this.

Galaxy device Battery drain issue: https://www.samsung.com/in/support/mobile-devices/how-can-i-optimise-and-extend-the-battery-life-on-...

Galaxy device lagging issue: Kindly check the space on your device:
Path: Settings > Battery and device Care > Storage
To improve the device performance there should be sufficient space.

Kindly check the RAM in your device:
Path: Settings > Battery and Device Care > Memory.
The device's RAM should be free to improve performance. So clear the RAM once a day.

Clear app cache through Device care:
Tap on Settings>Device Care> Storage> Clean Now.

The clear cache memory of a particular application:
Settings > Apps > Now pick the app that you like to clear off the cache memory > Storage > Clear Cache.

Is there any unnecessary application running in the background?
Kindly close the background running applications in the device (Tap the left side key & close the background running application).

Kindly uninstall that application by following the below steps and check once as the issue might occur due to third-party applications: Settings> Apps> Select the third-party application from Apps> Uninstall.

Kindly check if you are using a memory card on your device.
If you are using the memory card on your device. we will advise you to safely remove it from your device. For this follow the below steps:

Step 1: Before removing the memory card, first, unmount it for safe removal.
On the Home screen, tap Apps > Settings > Device maintenance > Storage > More option > Storage settings > SD card > Unmount. Insert the ejection pin into the hole on the tray to loosen the tray.
Note: Ensure that the ejection pin is perpendicular to the hole. Otherwise, the device may be damaged.

Step 2: Pull out the tray gently from the tray slot.
Step 3: Remove the memory card.
Step4: Insert the tray back into the tray slot

Note: Please ensure that the memory card is not removed while the device is transferring or accessing information. Doing so can cause data to be lost or corrupted or damage to the memory card or device.
Samsung is not responsible for losses that result from the misuse of damaged memory cards, including the loss of data.

If you enabled Power Saving Mode, Power saving mode limits the performance of the device. So we recommend disabling the Power Saving mode in your device.

Update the software if available: https://www.samsung.com/in/support/mobile-devices/samsung-galaxy-smartphone-how-to-update-software/

You can reset your device by following the steps from the below link.
https://www.samsung.com/in/support/mobile-devices/samsung-galaxy-mobile-how-to-perform-a-factory-res...

In case the issue still occurs, kindly report the problems with a log file. To share a log file, click on the Samsung Members Application (Open Samsung Members Application > Support> Tap on error report > Type your query > Send).

Warm Regards,
Samsung Customer Support