Sim card not detecting after updated security patch level 1 November 2021

[Members_Skcso06]

Hello,

Today, my samsung Galaxy M31s mobile prompted for Latest security patch update and i selected to install. After installation of update my phone not detecting sim cards. I tried reboot, reinserted sims, aeroplane mode... But no use. Could anyone assist on it?

Build Number : M317FXXU3CUJ3

Android version : R(Android 11)

Release Date : 2021-11-30

Security patch level : 2021-11-01

• Overall stability of your device has been improved.

[Jasmeet17]

try factory resetting your device

[Jasmeet17]

but ensure to make a data backup first

[Members_Skcso06]

Factory reset option will be the final solution as it needs more effort. Is any other solution or case study for this issue?

[user963]

Yes u can reset network settings

[Members_Skcso06]

Did reset network settings and additionally all settings as well still issue persist.

[cs-member13]

Dear Samsung Member,

Greetings from Samsung Customer Support!

We acknowledge your query and apologize for the same. To resolve your device network issue please visit this link: https://www.samsung.com/in/support/mobile-devices/samsung-galaxy-smartphone-how-to-optimise-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/Ask questions).

Thank you for writing to Samsung.

Warm Regards,
Samsung Customer Support