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Wireless Charger diagnostic guide

Wireless Charger: test the fault before changing parts or settings.

Check power-source assumptions and device symptoms before treating slow or intermittent wireless charging as a failed phone or charger.

3 relevant tests3 first checksBrowser limits stated

Start with a clean baseline

Use browser-visible screen, touch, camera, microphone, speaker, sensor and connection tests as a fast functional inspection, then use the OS/manufacturer for battery-health, cellular, biometric and internal hardware diagnostics.

Live evidence

Relevant checks

Charger Wattage MatchCompare a device's entered power requirement with a charger's rated wattage while keeping USB-PD/PPS and voltage-profile limits explicit.
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USB Voltage Current to Watts CalculatorCalculate watts from an entered USB or charger voltage/current profile.
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Browser Battery StatusShow charging state and charge level when the browser exposes the Battery Status API.
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First sequence

Do the high-signal checks before risky changes

  1. 1

    Remove cases or accessories that interfere with alignment

  2. 2

    Use the charger and power adapter combination specified by the manufacturer

  3. 3

    Compare wired charging if wireless charging is intermittent

Decision points

What the result should change

If touch/camera/audio works in browser but not one appCheck the app's permission and selected input/output before resetting the phone.
If charging is the symptomSeparate adapter wattage, cable capability, connector condition and battery/thermal limits.
If the device is used/refurbishedTest all user-facing functions before account transfer/payment, not after.
Browser can help check
  • Compare entered charger wattage to device requirements
  • Show browser-exposed battery charging state where supported
Browser cannot prove
  • Read Qi or Qi2 negotiation generically
  • Measure coil alignment or thermal throttling
  • Certify charger safety

Repair boundary

Know when to stop browser troubleshooting

  • Swollen batteries, exposed cells or severe heat require immediate service handling.
  • Do not insert metal objects or liquids into charging ports.
  • DeviceOK cannot verify IMEI ownership, activation lock or water-resistance integrity.

Used-device inspection

What to verify before paying or signing off a repair

  • Touch across the whole panel and pixel/color inspection
  • Front/rear cameras, microphones, speakers and buttons
  • Charging/data port, Wi-Fi/Bluetooth and manufacturer battery-health screen