chromebook black screen and no bootup

[satpal123]

I updated the chromebook OS and then shut it down. Next morning I started it but it did not respond. After hard reset (Esc + refresh+power button), it asked for recovery.

I downloaded the recovery image from chrome browser in a pen drive as per instructions. But at the time of finishing the recovery it prompted "unknown error"

Please reslove.

[Kuroi_Kenshi]

Hi @satpal123,

Welcome to the HP Support Community! 

Thanks for reaching out about your query regarding your laptop!

We're thrilled to have the opportunity to assist you and provide a solution.

Try these steps:

Verify Recovery Media:

• Ensure the USB flash drive or SD card used for recovery is properly formatted and has no other files. It should be at least 4GB in capacity and dedicated to only the recovery image.

Create Recovery Media Again:

• Delete any files on the USB flash drive or SD card, then create the recovery media again using the Chromebook Recovery Utility:
  • Open the Chrome browser on a computer with internet access (it can be another computer if your Chromebook isn’t working).
  • Install the Chromebook Recovery Utility from the Chrome Web Store.
  • Follow the instructions to create the recovery media.

Check Internet Connection:

• Ensure that the internet connection is stable when creating the recovery media. Intermittent connection issues can cause errors.

Retry Recovery Process Using Different Hardware:

• If the problem persists, try using a different USB flash drive or SD card—certain brands or types may have compatibility issues.

Alternative Recovery Method:

• If possible, attempt to recover using an internet connection instead of recovery media. During the recovery prompt, select “Recover using internet connection” if displayed, ensuring your Chromebook has stable internet access.

Powerwash Option:

• Try performing a Powerwash to reset the device to factory settings. This option is in the Settings menu under "Advanced."

I hope this helps.

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Best regards,