Today’s troubleshooting article addresses an issue on Galaxy J7 not detecting a SIM card on one of its slots. If you have a Dual SIM Galaxy J7 that can’t seem to recognize a SIM, this post might help.
Install a SIM card in your phone to enable full device capabilities, and make sure to power it down before proceeding. Use a SIM card removal tool or a sewing needle to open the SIM card tray, and ...
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