When you place the AirPods Pro into the charging case for charging, the front panel of the case displays a green LED indicator. However, if you notice a red flicker on the front panel of the charging case during the charging process, this usually indicates that there is a problem or abnormal situation with the charging.
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Here are some common causes that may cause the AirPods Pro charging case to flash red:
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1. Low charging case: If the charging case has run out of power, it will not be able to charge AirPods Pro properly, and the LED indicator on its front panel will flash red. At this point, you need to plug the charging case into the charger and wait for it to be fully charged.
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2. AirPods Pro is not properly placed in the charging case: If the AirPods Pro is not properly placed in the charging case, the contact point of the charging case may not be properly connected to the charging port of the AirPods Pro, resulting in a charging error or failure. Make sure the AirPods Pro is properly placed in the charging case and that the contact points of the charging case are clean and free of dirt.
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3. Internal failure of the charging box: In some cases, the charging box may not work properly due to the failure of the internal circuit or other components of the charging box, resulting in a blinking red light. If you confirm that these two conditions are not the cause, you may need to contact Apple Support or an authorized service center for further overhaul and repair.
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If you experience a red flashing light in the AirPods Pro charging case, try to resolve the problem by following the suggestions above first. If the problem persists, please refer to the relevant documents on Apple's official website or contact customer service to resolve the problem.
If your AirPods Pro keeps flashing red, even after they've been charged for a long time, there may be a problem. You can try separating the AirPods Pro from the charging case and then reinserting it into the charging case to see if it improves. If the problem persists, you may want to consider contacting Apple Support or going to the Apple Store for consultation and repair.