There are many many bugs in this official update(Android 12 One ui4)

[Parv43100]

I am facing network issue when i call to anybody.Some times call connects just as i dialed but sometimes it takes time to connect and Automatically fails the Network. My Jio eSim is not working properly and always shows poor network and always fails call when i call to anybody. There is also wifi network problem and always shows your wifi have poor quality network. But as i use wifi on other phone from the same wifi network then it is working properly. Facebook app is not running smoothly after Android 12 one ui4 in my S20 ultra. There are also many more bugs after This new update. The battery is draing very very very very fast. Please resolve these all bugs.

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[GuruKratOs]

You use beta versions or official

[Parv43100]

I am using official

[GuruKratOs]

OK....that's bug..it I'll be fix on next update

[cs-member13]

Dear Samsung Member,

Greetings from Samsung Customer Support!

We apologize for the inconvenience you are facing. We understand your concern and will help you resolve this. Kindly follow the below steps to resolve your issue:

Check device network mode settings
Please follow the below steps.

Step1: Navigate to apps 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 to set device network mode as LTE/3G/2G (auto connect) mode.

Check network operator settings
Kindly set device network operator as "Automatically".

Please follow the below steps.

Step1: Navigate to apps screen and tap on Settings.
Step2: Tap on Connections.
Step3: Tap on Mobile networks.
Step4: Tap on Network operators.
Step5: Select automatically.
Note: We recommend to set device network operators as LTE/3G/2G (auto connect) mode.
Step6: Tap on OK.
Step7: Registered on network.

In case the issue still occurs. Please register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report).

Thank you for writing to Samsung.

Warm Regards,
Samsung Customer Support

[Parv43100]

I already have followed above all Steps but the problem is still same as it is