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Samsung Galaxy A21s
Android 10.0
1. Find "Merge contacts"
Slide your finger upwards on the screen.
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Press Contacts.
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Slide your finger right starting from the left side of the screen.
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Press Manage contacts.
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Press Merge contacts.
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2. Merge identical contacts
Press the required number.
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Press Merge.
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3. Return to the home screen
Press the Home key to return to the home screen.
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