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Original topic:

Overheating and battery draining

(Topic created on: 07-30-2025 08:08 AM)
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Anique9256
Active Level 4
Options
Galaxy S
My Samsung galaxy s21plus has gone crazy in a bad way after the latest update !
I can barely scroll social media apps it starts to heat up in 2mins and battery starts to drain super fast.
Any solution would be a great help though I've tried many methods 
10 Comments
Solution
Krishnasatya
Active Level 3
Galaxy S
Go to Developer settings, Go to Running Services, Check which are running in background without your permission/Knowledge and Then Go to Normal Settings app/Apps, from three dots options, enable/show system apps, then go to required app name, then Disable/Uninstall..

next Disable Auto Sync from Notification/Quick panel, sync it manually if u want

Dont Use Airtel sim, It takes more battery to get signal, use jio, select LTE mode in Normal time, use 5G in your required time.

Use single sim if possibl, y bcaz, Samsung is not that much optimized for 2 sims may be..
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Anique9256
Active Level 4
Galaxy S
But sadly I'm using an airtel sim and facing issues with network and mobile data. 🙌🙏
Is there any way to fix that too?
Will there be an update to fix all these problems? If not it's going to be tough to continue to use the phone
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Krishnasatya
Active Level 3
Galaxy S
Just PORT/MNP it To JiO..

Till That, Try this.. U said SD888 Processor, Then install Google Dialer, set as Default Dialer.
Then use the code *#*#4636#*#*, Then change the network mode to LTE, it will help
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Anique9256
Active Level 4
Galaxy S
My bad the tips that you gave me earlier i selected the resolved thing accidentally but i hope your methods will do the trick
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BiRdMaN
Expert Level 5
Galaxy S
This can be due to the phone re-optimizing itself after the update or apps needing to be optimized for the new firmware.
Add apps to the "deep sleep" list to prevent them from running in the background and draining battery.

Clear app cache to remove temporary data that can impact performance and battery usage.
Resetting battery statistics can sometimes help.

Adjust background usage limits in Settings > Battery and device care > Battery > Background usage limits.

Choose options like "Put unused apps to sleep" or "Sleeping apps" to restrict background activity.

If you find this helpful, kindly accept it as a Solution. It helps others. Tap the 3 dots on my reply and select "Accept Solution." Thank you 😊
BiRdMaN
Expert Level 5
Galaxy S
Send an error report along with log files to customer support through this members app, and Samsung will add/fix it in the next update. To do that, follow this procedure
Open Samsung Members Application > Support> Tap on send feedback> Choose Composer> Select error report> Select the appropriate issue category> Type your query and send.

If you find this helpful, I'd appreciate it if you could ACCEPT it as a SOLUTION. Thank you 😊
goodthings
Expert Level 5
Galaxy S
Kindly complaint to Samsung customer care support through Samsung Members app as error report also send log files along with this error report for this issue and wait for next update maybe fix it by Samsung team soon. If you like please accept as a solution it's help to other users also, click on 3dots in my reply section and click on accept solution. Thanks.
goodthings
Expert Level 5
Galaxy S
You're welcome to here.
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cs_member10
Moderator
Moderator
Options
Galaxy S

Dear Samsung member,

Greetings from Samsung Customer Support!

We regret to hear about your experience with our product. Please believe that this is not a usual occurrence.

Please perform the below-mentioned troubleshooting steps, these may help in resolving your concerns.

▶ Galaxy device Battery drainage issue: Note: Charge in one go instead of charging many times as it affects the life span of battery and battery performance.

1. Perform Battery Optimization: Go to Settings > Select Device Maintenance/Device Care > Optimize > Optimize all options like Battery, Storage, and Memory.

2. Check device network fluctuation.
Avoid usage in areas with low network/fluctuation.

3. Adjust screen timeout settings: Go to Settings > Display > Screen timeout > Select the minimum screen timeout.

4. Check which application is or interface is using more battery from device care and try to update app or avoid using that app.

6. Turn off auto sync of e-mails, app data etc.
Open notification panel > Turn off auto sync option.

▶ Galaxy device heating issue: 1.Turn off Wi-Fi, GPS, Bluetooth, and other connectivity features when not using them.
2. Decrease the screen brightness.
3. Close background running apps.
4. Uninstall the unnecessary apps.
5. Reduce long duration of graphics intensive gaming sessions as it may cause heating issue.
6. Avoid usage of mobile phone when charging.

7. Update software: Go to Settings > Software update > Download and install > Check for software update > If Software update available > Download > Downloading updates > Install now
Note: Your phone will restart after the update is installed.

8. Reset the device:
IMPORTANT:
• Kindly create data backup of your device via SMART switch mobile application or http://www.samsung.com/in/support/smartswitch pc suite.
• Remember google password before resetting the device because it is required during initial setup.
• If you do not remember it, then reset, (Forgot password) your google account.
• For this:
• Open Gmail (https://accounts.google.com/servicelogin) > forgot password >Select ""try another way"" > Next > Enter a new password > Next

Please follow the below steps to reset the device: Settings > General Management > Reset > Temporary cloud backup or External storage backup > tap on Factory data reset (This will erase all data, including files and downloaded apps)

If the issue persists, 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 send feedback> Choose Composer> Select error report> select the appropriate issue category> Type your query and send.)

Warm Regards,
Samsung Customer Support