Is anyone else facing issues after updating S21FE exynos variant to One UI 7?

[HarshGoyaL7]

Ever since I updated my phone(S21FE)to One UI 7, I've been experiencing noticeable heating and faster battery drainage. I'm wondering if this is a common issue or something specific to my device. Would love to hear if others are going through the same after the update and if there are any fixes or workarounds you've tried.

[lucccy]

yeah so much like my network is now being rare thing in my device

[HarshGoyaL7]

What about heating and battery??

[Musabbir_Zone]

Many people have reported heating and battery drain issues on the Galaxy S21 FE after the One UI 7 update. This is a *common issue* — not just your device.

✅ What you can do to fix it:

1. *Enable software optimization*
- After the update, the phone will optimize the system in the background for a few days. Use the phone normally for 2–3 days, and the battery will gradually stabilize.

2. *Wipe Cache Partition*
- Turn off the phone and go to Recovery Mode by pressing the *Volume Up + Power* buttons.
- Select *Wipe cache partition* and restart the phone.

3. *Restrict background apps*
- Turn on Settings → Battery and device care → Battery → Background usage limits → Put unused apps to sleep.

4. *Enable Adaptive Battery*
- Settings → Battery → More battery settings → Keep Adaptive battery on.

5. *Turn off unnecessary features*
- Always On Display, 5G, Location Service – Keep it off except when in use.

6. *Report using Samsung Members App*
- This will allow the Samsung developer team to log the issue and provide a fix.

---

🔄 If the problem persists:
- *Factory Reset* option can be kept as a last resort (with backup).
- Or wait for the next *software patch update*.

Following these steps will resolve the issue in most cases.😊❤

[rampra]

After doing these step throw phone in dustbin

[HarshGoyaL7]

Thank you so much for the suggestion, I really appreciate it and will definitely keep it in mind!

[Musabbir_Zone]

If you like my solution, I would be grateful if you accept it.🙏😊❤

[cs_member10]

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