Troubleshooting Guide: Fixing Continuous Power Cycling When Charging Lenovo ThinkPad E485

Dealing with a laptop that turns on and off in a continuous loop while charging can be frustrating. However, this issue can often be resolved with some careful troubleshooting.

This guide will walk you through step-by-step instructions to help you identify and fix the problem causing your Lenovo ThinkPad E485 to exhibit this behavior.

Table of Contents:

1. Check the Basics
   • Ensure Proper Power Source
   • Verify Charger Connection
   • Assess Battery Level
2. Perform a Power Reset
   • Disconnect All Power Sources
   • Press and Hold the Power Button
   • Reconnect and Restart
3. Examine Charging Cable and Adapter
   • Inspect Cable for Damage
   • Test with a Different Adapter
4. Check Battery Health
   • Access Lenovo Diagnostics
   • Battery Status and Health Check
5. Update Drivers and BIOS
   • Update Battery Drivers
   • Update BIOS (if necessary)
6. Run in Safe Mode
   • Booting into Safe Mode
   • Identifying Software Conflicts
7. Check for Overheating
   • Ensure Proper Ventilation
   • Clean Dust and Debris
8. Perform a System Restore
   • Restoring to a Stable State
9. Hardware Check
   • Memory and Storage Check
   • Professional Hardware Inspection
10. Contact Lenovo Support

• Warranty and Repair Options

Guide:

1. Check the Basics: Start by ensuring that you’re using a reliable power source, the charger is securely plugged into both the laptop and the wall outlet, and your laptop’s battery isn’t critically low.
2. Perform a Power Reset: Disconnect the laptop from all power sources, press and hold the power button for about 15 seconds, then reconnect and attempt to power it on.
3. Examine Charging Cable and Adapter: Check for any visible damage to the charging cable and adapter. If possible, try using a different charger to see if the issue persists.
4. Check Battery Health: Run Lenovo Diagnostics to assess the battery’s status and health. If the battery is the culprit, it might need replacement.
5. Update Drivers and BIOS: Outdated drivers or BIOS can cause power-related issues. Visit Lenovo’s official website to download and install the latest drivers and BIOS updates.
6. Run in Safe Mode: Boot your laptop in Safe Mode to determine if third-party software is causing the problem. If the laptop behaves normally in Safe Mode, a software conflict might be the issue.
7. Check for Overheating: Overheating can trigger unexpected shutdowns. Ensure your laptop has proper ventilation, and consider cleaning out dust and debris from the internal components.
8. Perform a System Restore: If the issue started after a software change, performing a system restore to a point when the laptop was working fine might resolve the problem.
9. Hardware Check: Use built-in diagnostics or third-party software to test your laptop’s memory and storage. If faulty hardware is the cause, professional inspection might be necessary.
10. Contact Lenovo Support: If all else fails, reach out to Lenovo’s official support for warranty and repair options. They can provide specialized assistance and potential solutions.

By following this comprehensive guide, you’ll be equipped with the knowledge and steps needed to troubleshoot and fix the continuous power cycling issue on your Lenovo ThinkPad E485 when plugging in the charger.