Here are a few steps you can take to try and wake up your laptop:

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1. Check to make sure the laptop is plugged in.
2. Verify that the power cord is connected securely at both ends and is not damaged.
3. Try a different power outlet.
4. Press and hold the power button for 10 – 15 seconds.
5. Check the AC adapter for a light (usually green or blue)
6. If no light is present, try another power adapter.
7. Remove the battery and reinsert.
8. Free up unnecessary storage.
9. Run a diagnostic program.