When the red light flashes in the charging bay of your iPods 12, it usually means that the charging bay is charging, but at a slower rate.
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If your iPods 12 charging bay has been flashing red, it may be one of the following reasons:
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1. Poor charging cable connection: Please check that the charging cable is correctly connected to the charging bay and iPods, and ensure that the connection is secure.
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2. Low battery power in charging compartment: If the battery power in charging compartment is too low, it may not provide enough power to charge iPods, resulting in slow charging speed.
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3. Charging bay or iPods are faulty: If the above two situations are not a problem, there may be a fault in the charging bay or iPods themselves. It is recommended that you contact Apple customer service or go to an Apple authorized repair center for repair.
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In summary, if the red light in the charging bay of your iPods 12 is flashing, please check that the charging cable is properly connected and then try to replace the charging bay or contact Apple customer service or an authorized repair center for repair.