MANYA123
Beginner Level 2
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Mumbai
Hello

I am using samsung m31 smartphone and facing network issue in phone smartphine is working properly but when i insert sim in mobile there is no network and sim card detect in mobile and i went to service center for solve this issue but they said its mother board issue you have to replace mother board of mobile its very costly 
3 Comments
Lekshmanan
Expert Level 2
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Mumbai
What ! It's Not A Motherboard Issue I Think

Kindly Check With Other Sim.
Check With 2 slots.
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parthksh
Active Level 3
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Mumbai
Go to the network provider's centre. Recently with my other device same issue was detected and the problem was with the SIM card. The chip on the sim card was damaged. So check that once.
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CS_member7
Active Level 5
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Mumbai

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-mobile-network-issues/#:~:text=1%20Check%2...

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

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