Lumix G100 Troubleshooting Guide

Steve Ireland

The Panasonic Lumix G100 is a compact mirrorless camera designed for vloggers, content creators, and casual photographers. While it’s reliable, you may occasionally run into issues such as focusing problems, overheating warnings, battery drain, or connectivity errors.

This troubleshooting guide covers the most common Lumix G100 problems and how to fix them quickly.


Before You Start Troubleshooting

Try these basic steps first:

  • Restart the camera
  • Fully charge or replace the battery
  • Update the camera firmware (if available)
  • Reset settings if the issue started after a configuration change

Camera Won’t Turn On

Possible Causes

  • Drained battery
  • Dirty battery contacts
  • Faulty battery or charger

Solutions

  • Charge the battery fully
  • Remove and reinsert the battery
  • Clean battery contacts gently with a dry cloth
  • Try a different Panasonic‑approved battery

Autofocus Not Working or Hunting

Possible Causes

  • Incorrect focus mode
  • Low light or low‑contrast scene
  • Dirty lens contacts

Solutions

  • Set focus mode to AF‑S or AF‑C
  • Enable Face/Eye Detection
  • Increase lighting or move to a higher‑contrast area
  • Clean lens and camera mount contacts
  • Switch to Manual Focus to test lens functionality

Blurry Photos or Shaky Video

Possible Causes

  • Slow shutter speed
  • Camera movement
  • Image stabilization turned off

Solutions

  • Increase shutter speed (1/125s or faster for handheld shots)
  • Enable Image Stabilization (lens‑based)
  • Use a tripod or gimbal
  • Avoid digital zoom

Overheating Warning Appears

Possible Causes

  • Long 4K video recording sessions
  • High ambient temperatures
  • Poor airflow around the camera

Solutions

  • Switch to 1080p recording
  • Turn off the camera between takes
  • Remove accessories blocking ventilation
  • Let the camera cool before continuing

Video Recording Stops Automatically

Possible Causes

  • Overheating
  • Slow or incompatible SD card
  • File size limits

Solutions

  • Use a UHS‑I U3 / V30 SD card
  • Format the SD card in‑camera
  • Reduce video resolution or frame rate
  • Allow the camera to cool

Poor Audio Quality or No Sound

Possible Causes

  • Microphone settings misconfigured
  • External mic not recognized
  • Wind noise

Solutions

  • Check Audio Levels in the menu
  • Make sure the external mic is fully plugged in
  • Enable Wind Noise Reduction
  • Use a windshield or lav mic
  • Test audio before recording

Wi‑Fi or Bluetooth Not Connecting

Possible Causes

  • App compatibility issues
  • Bluetooth disabled
  • Interference from other devices

Solutions

  • Install the latest Lumix Sync app
  • Enable Bluetooth on your phone
  • Restart both devices
  • Remove old pairings and reconnect
  • Keep devices close during pairing

Photos or Videos Not Saving

Possible Causes

  • Full or corrupted SD card
  • Locked SD card
  • Unsupported card format

Solutions

  • Check available storage
  • Unlock the SD card
  • Back up and format the card in‑camera
  • Replace the SD card if errors persist

Battery Drains Too Fast

Possible Causes

  • High screen brightness
  • Wi‑Fi/Bluetooth left on
  • Continuous video recording

Solutions

  • Reduce LCD brightness
  • Disable wireless features when not needed
  • Carry spare batteries
  • Use USB power while filming

Camera Freezes or Menu Not Responding

Possible Causes

  • Software glitch
  • Corrupted settings

Solutions

  • Remove the battery for 30 seconds
  • Perform a factory reset:
    • Menu → Setup → Reset
  • Update firmware if available

When to Contact Panasonic Support

If problems persist after troubleshooting:

  • The camera won’t power on at all
  • The sensor or LCD shows physical damage
  • Error messages continue after resets

Contact Panasonic support or visit an authorized service center.


Final Tips for Smooth Performance

  • Use high‑quality SD cards and batteries
  • Keep firmware and apps updated
  • Avoid prolonged 4K recording in hot environments
  • Regularly clean lenses and contacts

Conclusion

Most Lumix G100 issues can be resolved with simple setting adjustments, proper accessories, or basic maintenance. By following this troubleshooting guide, you can quickly diagnose and fix common problems—keeping your camera ready for photos, videos, and vlogs.