Issues with SIM card detection after update

[luuchorocha]

Hi everybody!

I'm facing an issue after the latest update on my Samsung Galaxy A31.

The sim card isn't recognized by the phone but it works fine in other devices. 

I've tried all the possible solutions, restarting the phone,  doing a factory reset (really samsung???), toggling on/off airplane mode, but the sim card isn't even detected.

What else can I try? 

I don't want to unlock the bootloader and replace the firmware with the old version using Odin.

Thanks in advance 

[sgsamsungfan]

Me too

[sgsamsungfan]

Restarting fixes the problem in my case

[luuchorocha]

I've tried restarting several times but it did not fixed the issue.

Also, I did a factory reset as extreme solution, but nothing.

The SIM card works without any issues in my other mobile (Samsung A21s) 

[sgsamsungfan]

Yesterday it happened to me....I reinserted the sim slots now working fine

[Samsung_Support2]

Dear Samsung Member,

Greetings from Samsung Customer Support!

We apologize for your inconvenience. We would request you to register your concern in Samsung Members Application. So, that our concern team gets back to you as soon as possible.

Please follow this path to register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).

Note. please attach the error log file within 15 minutes of the error occurred.

Thank you for writing to Samsung. 

Warm Regards,  
Samsung Customer Support