S21 FE Network Issue After April Security Update

[Batman10]

In our area, 5G coverage is good. Earlier before Apr security update, I was able to get 5G with low signal (2 bars of signal) or coverage. Now the 5G is only working when the signal strength 4 bars of signal.

Constantly signal bars or strength is reducing to 2 bars. Putting mobile to airplane mode temporarily gives 5G but only 2 to 3mins then switches to 4G instead. Has anyone faced this problem? Is there's any solution, drop it here.

[PaulDundigalla]

Didn't notice signal strength issue, but 5G speeds have dropped drastically after april patch.

[JMK96]

Exynos or SD ?

[Batman10]

SD

[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 issue.

Kindly check the device in different locations/network coverage areas.

Check Mobile Network: Settings> Connections>Mobile networks> Network mode> Select 5G/LTE/3G/2G (auto connect).

Check Network Operator: Settings> Connections> Mobile networks> Network operators> Select automatically.

Kindly check the same SIM card in another phone or another SIM card in the same phone to verify the issue.

Update device software (If available): Settings > Software update > Download and install > Checking for software update > Software update available > Download > Downloading updates > Install now.

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 visit the service center for a physical inspection of your device. You can locate your nearest service center with this given link: https://www.samsung.com/in/support/service-center/

Warm Regards,
Samsung Customer Support

[goodthings]

Please reset network setting of both Sim one by one and than reset all settings of your's device in general management settings also Flight ✈️ mode on n off one time, restart your's device without any Sim in slots ,interchange Sim in slots, turn off power saving mode 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.

[Aashirwad28]

I am also facing a similar issue. Is it related to security update?

[Batman10]

Definitely. Before Apr security update, the 5G network was smooth without any frequent switches or more stable.