Laptop wont turn on with continuous blinking when plugged

Troubleshooting a Continuous Blinking Power Indicator on Your HP EliteBook 840 G8

If you’re experiencing a persistent blinking light when attempting to power on your HP EliteBook 840 G8 after plugging it in, you’re not alone. This issue can be perplexing and may indicate various underlying hardware or power-related problems. In this article, we’ll explore potential causes and provide step-by-step troubleshooting tips to help you resolve the issue effectively.

Understanding the Blinking Power Indicator

A blinking or flashing power light often serves as a diagnostic code, signaling specific hardware alerts or errors. With HP laptops, a continuous blinking of the power LED typically points to issues such as battery problems, power supply faults, or internal hardware malfunctions. It’s important to interpret these signals accurately to determine the best course of action.

Common Causes of the Issue

• Battery Issues: The battery may be faulty, drained, or not properly connected.
• Power Supply Problems: The AC adapter or charging port could be defective.
• Hardware Malfunctions: Internal components such as RAM, motherboard, or other hardware may be causing startup issues.
• Firmware or BIOS Glitches: Corrupt BIOS settings can prevent the laptop from booting correctly.

Step-by-Step Troubleshooting Approach

1. Perform a Hard Reset
2. Disconnect the power adapter from the laptop.
3. Remove any connected peripherals.
4. Press and hold the power button for approximately 15-20 seconds to discharge residual power.

5. Reconnect the power adapter and attempt to turn on the laptop.

6. Check the Power Adapter and Charging Port

7. Ensure the adapter is plugged into a functional power outlet.
8. Inspect the charging cable and connector for damage.

9. Consider testing with a different, compatible HP charger if available.

10. Inspect the Battery

11. If your model supports removable batteries, remove the battery and try powering on the laptop with just the AC adapter.

12. If the laptop starts normally, the battery may need replacement.

13. Reset Hardware Components

14. Open the laptop case carefully following manufacturer guidelines.
15. Reseat RAM modules and any other accessible hardware components.

16. Reassemble and attempt to restart.

17. Check for BIOS or Firmware Issues

18. If possible, perform a BIOS reset or update using HP’s support tools.

19. Consult HP’s official support resources or contact technical support for assistance.

20. **Seek Professional Repair