Samsung s21fe automatically switches to 4G from 5G when someone calls

[rnjts21FE5G]

Samsung s21fe automatically switches to 4G from 5G when someone calls.

Is there any solution?

[Sachin8365]

U didn't get me I think jio using SA technology but no 5G calling feature in India yet thats why when u get a call ur network downgrade to 4g mark it.

[DrSandeepMahapatra]

No dear I absolutely got your point. SA itself means using same technology for data and voice call. Am a scientist who has been working in this research field since years now, you may check the technical fact sheet of Jio 5gi . Only Jio uses 5G for call and data ,no other network uses this technology in India till now.
Only in one condition Jio's 5G will shift to 4G in your mobile is when the area where you are there ,has weaker 5G coverage than 4G .

[Sachin8365]

Try it practically u will get that.
5g calling is Norte I didn't remember name but still under development phase I m in news field and I read it from a article.

[DrSandeepMahapatra]

Not dear it's not that ,u might have read something but am into the field work myself. Articles are not authentic sources , go for scientific analysis from telecommunications engineering point of view.

[Sáyân15]

I place & receive calls in 5G & my phone doesn't switches to 4G...

[Ravi-vegeta]

5g calling is still in testing phase , it haven't rolled out yet.

[rnjts21FE5G]

Okay, thanks brother for the information

[DrSandeepMahapatra]

Since 5G signals are weaker in penetrating any obstacles therefore for better efficiency they are using combined frequencies. As soon as the 5G coverage gets a boost in the country ,we can get fully evolved voice over 5G. But at the end of the day , call quality matters. VoNR is not that much important as compared to the availability of mmWave 5G service in India ,which is truly the worldclass 5G standard when it comes to data speed.

In the pictures you can see the VoNR (5G calling) capabilities of Jio. Though the countrywide implementation will take time for developing countries like ours where 4G also has not been able to cover entire nation till date.

[cs_member10]

Dear Samsung member,

Greetings from Samsung customer support.

We acknowledge your query and apologize for the inconvenience caused to you and will surely assist you regarding the same and please follow the easy troubleshooting steps which might help to solve the issue.

Kindly restart your smartphone once and also re-insert your SIM card.
Check device network in an open area: Kindly check your device in a different location/network coverage area.

Check device network mode settings
Please follow the below steps.
Step1: Navigate to the app's screen and tap on Settings.
Step2: Tap on Connections.
Step3: Tap on Mobile networks.
Step4: Tap on network mode SIM1 or SIM2.
Step5: Select network mode.
Note: We recommend setting device network mode as LTE/3G/2G (auto connect) mode.

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

In case the issue still occurs. Please register your concern in Samsung Members Application (Open Samsung Members Application > Support> Tap on error report > Type your query > Send).

Thank you for writing to Samsung.

Warm Regards,
Samsung Customer Support

[siva1288]

My phone is s21 fe 5g
When phone got heated it directly change to 4g from 5g
Is their any solution of it