7 ways to troubleshoot if your phone's SIM card isn't working

If you can't make a call or if you see an error message that your phone's SIM card is not working, there are several ways to ...
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In how many days does the SIM card get deactivated if it is not recharged, know what the rules say..

Sim Activation Time Without Recharge: It often happens that someone has two SIMs, and people use only one for calling. Meanwhile, they do not recharge the second SIM, and when calls come in, they ...