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Original topic:

It's been one year my mobile sim 1 not working

(Topic created on: 10-11-2021 12:13 PM)
ilahi
Apprentice
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Galaxy Note20 Series
I have Samsung galaxy note 20 Ultra dual sim 5g. Its been almost one year my mobile sim card slot 1 not working and I can see the message that sim card not allowed.
I contacted Samsung customer service and he told me to soft reset, then network reset, then turn on flight mode for 10 seconds then turn off but no result. 
My sim card slot 1 still not working. 
My mobile is still under warranty but why there is no solution? 
Samsung can replace my mobile phone but there should be solution. 
Thanks 
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4 REPLIES 4
Beth_S
Moderator
Moderator
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Galaxy Note20 Series

Have you tried the SIM card in a different phone or in the other slot @ilahi?

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ilahi
Apprentice
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Galaxy Note20 Series
Yes. Sim slot 2 working fine but sim slot 1 not working.
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Rūmøur
Navigator
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Galaxy Note20 Series
This seems to be a common problem with their dual sim phones. Currently facing the same.proble with my s21 ultra. No signal/service on both sim slots after i did a security update. This sucks!!!
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CharlieCroker
Journeyman
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Galaxy Note20 Series
On a N20U and using dual sims with no issues. I just wish three and virgin sorted out esims
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