Blinking / Flashing LED
Various Wireless Charger
Severity: MinorWhat Does This Error Mean?
A blinking LED on a wireless charger usually indicates a problem — foreign object detected, phone misaligned, or incompatible device. Remove the phone, check for metal objects, recenter, and try again.
Affected Models
- Anker PowerWave
- Samsung Wireless Charger
- Belkin BoostCharge
- Most Qi wireless chargers
Common Causes
- Foreign Object Detection (FOD) — metal between phone and charger
- Phone not aligned with the coil
- Incompatible device placed on the charger
- Charger overheating
- Power adapter issue
How to Fix It
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Remove everything from the charger.
Take the phone off and check for any metal objects (coins, keys, cards) on the charger surface.
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Check for metal in or on the phone case.
Metal rings, kickstands, or magnetic card holders trigger FOD. Remove the case and test.
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Re-center the phone on the charger.
The LED should change to solid when the phone is properly aligned.
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If the charger is hot: let it cool down.
Overheating triggers the LED warning and pauses charging. Let it cool for 10-15 minutes.
Frequently Asked Questions
What is Foreign Object Detection?
FOD is a Qi safety feature that detects metal between the charger and phone. Metal objects can heat up dangerously during wireless charging, so the charger stops and blinks.
What do different LED colours mean?
It varies by brand, but common patterns: Solid blue/green: charging normally. Blinking blue: standby or aligning. Blinking orange/red: error or FOD detected. Check your charger's manual for specifics.