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SAMSUNG Galaxy S21 5G Mobile User Guide — questions & answers

Read product questions and troubleshooting answers linked to SAMSUNG Galaxy S21 5G Mobile User Guide.

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Answered questions

Why am I having trouble receiving calls and experiencing intermittent outgoing call issues on my Samsung Galaxy S21 5G?

2026-07-13 1 answer

It sounds like you are experiencing network or software issues with your Samsung Galaxy S21 5G. Please try the following troubleshooting steps: Check your…

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How do I turn on the Samsung Galaxy S21 and insert the SIM card?

2026-05-20 1 answer

To turn on your Samsung Galaxy S21 5G after it has been powered off, press and hold the Side key (located on the right…

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