What's going on

Wireless charging relies on electromagnetic induction. Inside your wireless charging pad is a transmitter coil made of tightly wound copper wire; inside the back of your phone sits a matching receiver coil. When AC current flows through the pad, it creates a fluctuating magnetic field. When your phone's receiver coil enters this field, an electric current is induced in the phone's copper wire, sending power to the battery management circuit.

Because this energy transfer happens through the air, it is highly sensitive to distance, orientation, and heat. If anything disrupts the magnetic field—or if the delicate copper coil inside the device is disconnected—the charging process will drop or refuse to start entirely.

Symptoms people notice

Wireless charging failures tend to show distinct patterns compared to standard wired charging issues:

• The infinite pause: The screen shows a charging animation for two seconds, turns off, and fails to draw power.
• Blinking status LEDs: The charging base flashes an amber or red light indicating a foreign object detection (FOD) error or power negotiation failure.
• Overheating without progress: The phone feels hot after sitting on the stand for an hour, but the battery percentage hasn't moved or has actually decreased.
• Strict sweet-spot requirement: You have to nudge the phone down to the millimeter to get a charge symbol.
• Silent failure: The phone works normally when plugged into a USB-C or Lightning cable, but completely ignores inductive pads.

Likely causes

1. Incompatible or thick accessories: Metal rings, magnetic car mount plates, and thick dual-layer cases create a gap greater than the typical 3mm–5mm maximum range of Qi chargers.
2. Weak power bricks: Connecting a wireless charging pad to a standard 5W USB wall block causes the pad to brown out under load.
3. Thermal safety lockouts: Qi charging generates more residual heat than cable charging. If the phone gets too hot, system software actively halts charging to prevent battery degradation.
4. Damaged receiver coil flex: Drops can crack the fragile ferrite backing of the internal wireless coil. Additionally, improper DIY back glass repairs frequently tear the wafer-thin ribbon cable connecting the coil to the mainboard.
5. Corrupted charging services: A software glitch in the battery optimization background process can prevent the phone from recognizing the Qi handshake protocol.

Quick checks first

Before assuming your phone's internal hardware is dead, rule out environmental and accessory variables:

• Naked testing: Take off the case completely. Place the phone directly onto the charging pad.
• Isolate the adapter: Check the bottom of your wireless pad for minimum input requirements (e.g., 9V/2A). Ensure your wall block matches or exceeds those specs.
• Test another device: Place a friend's phone on your wireless pad to confirm whether the pad itself works.
• Cool down: If your device was running high-performance apps or sitting in direct sunlight, let it sit powered off in an air-conditioned space before testing.

If you find that your wired port is also acting erratically, check our guide on /problems/phone-not-charging for additional power troubleshooting steps.

When it's a real repair

If your phone refuses to charge wirelessly on multiple known-good Qi and MagSafe pads without a case, you are likely dealing with a hardware issue inside the phone.

Common physical repair scenarios include:

• Severed Qi/NFC flex assembly: The copper coil flex is bonded to the back glass or midframe depending on the phone model. Replacing this requires opening the phone frame.
• Unseated motherboard connector: A hard drop can dislodge the press-fit ZIF or snap connector holding the wireless receiver module to the logic board.
• Failed power management IC: Power management chips on the motherboard can burn out if subjected to short circuits or severe electrical surges.

DIY vs professional repair

Fixing an internal wireless charging coil is accessible for experienced DIYers, but it requires patience. On most modern smartphones, accessing the Qi coil requires removing the rear glass or back cover using heat and specialized pry tools.

• DIY path: If you are comfortable heating adhesive, removing delicate glass panels, and keeping track of tiny screws, you can buy a replacement Qi coil/NFC assembly. Browse our step-by-step repair teardowns in /guides to evaluate the complexity for your specific model.
• When to seek help: If the back glass is severely shattered, opening the phone without shattering it further is difficult. If replacing the coil flex does not restore power, the issue lies in board-level micro-soldering components (PMIC). In that case, consulting a technician or utilizing a mail-in repair option through LML Experts is recommended.

Next steps

1. Rule out accessories: Test the phone without a case on a high-wattage Qi charger.
2. Identify the exact model: Look up your phone's specific interior layout to see where the Qi coil connector rests.
3. Consult repair guides: Check /guides for detailed step-by-step instructions on opening your phone safely without damaging screen or battery flex cables.
4. Read component reviews: Check /reviews to find quality replacement parts, opening tools, and thermal adhesive packs.