What steps should I take if my scientific calculator continuously displays a "calculator error number"?

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Grade: Education Subject: Support
What steps should I take if my scientific calculator continuously displays a "calculator error number"?
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If errors persist, first perform a full memory clear or a factory reset, as this often resolves software glitches or corrupted settings (consult your manual for the specific procedure). Check and replace batteries if they are old or if the display is dim, as low power can cause erratic behavior. Test with simple, known-correct operations (e.g., 1+1, √4). If the problem continues, consult your calculator's user manual for specific error codes, or consider if there might be a hardware issue.