The Chromebook Recovery Utility is the official and most reliable method to remove Retail/Demo Mode. It reinstalls ChromeOS in verified mode, effectively removing all demo restrictions.
Requirements:
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A separate computer (Windows, Mac, Linux, or another Chromebook).
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A USB drive or SD card with at least 4GB of space.
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Your Chromebook’s model number.
 
Steps to Remove Retail Mode:
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Install the Utility:
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Open Chrome on another computer.
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Install the Chromebook Recovery Utility.
 
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Create Recovery Media:
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Launch the utility and click Get Started.
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Enter your Chromebook’s model number.
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Insert your USB/SD card and follow the prompts to create recovery media.
 
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Enter Recovery Mode on Your Chromebook:
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Turn off the Chromebook.
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Press Esc + Refresh + Power.
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Release the keys when the recovery screen appears.
 
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Recover ChromeOS:
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Insert the recovery USB/SD card.
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Follow the on-screen prompts to reinstall ChromeOS.
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After completion, your Chromebook will restart in normal verified mode, removing Retail Mode.
 
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Important Notes:
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This process erases all local data.
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Recovery media is the most reliable method to remove Retail/Demo Mode, even for devices with firmware restrictions.