Not getting 5g network after updating device to one ui 6 i.e. android 14

[bhuppiii]

On 25 jan 2024 a small update of 250 mb arrives on notification of my galaxy s21fe . After getting my phone updated through that notification no sim card detect my phone even already 2 sim card were there & i am using same before update.

Trying inserting only one sim card found that phone work with only one sim card that too only on 4g mode even after showing network selection to auto 5g/lte/3g2g in delhi area were 5g works pretty well before that update.

Went to the service centre they says issues is with motherboard how is that possible .

Please suggest any troubleshoot for this

[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. Thanks.

[goodthings]

Your's most welcome to here.

[cs_member8]

Dear Samsung Member,

Greetings from Samsung Customer Support!

As per your query, we would request you to kindly perform the following steps to resolve your issue.

How to use 5G in your Galaxy device: https://www.samsung.com/in/support/mobile-devices/how-to-use-5g-on-your-galaxy-phone/

Network optimization: https://www.samsung.com/in/support/mobile-devices/samsung-galaxy-smartphone-how-to-optimise-network-...

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 error report > Type your query > Send).

Warm Regards,
Samsung Customer Support

[Velmuruganit22]

I am using samsung A73 my mobile update one UI 6.1 then iam using jio sim my mobile not connected 5g only 4g