Data Wipe Expectation for ChromeOS Devices

No symptom information is available.

No cause information is available.

Data Backup Before Motherboard Replacement

When using web apps on a ChromeOS system, all important data is stored safely in the cloud. Certain kinds of files, like downloads, photos, cookies, saved networks, and browser cache files may still be present locally on the system. The ChromeOS encrypts this data using tamper-resistant hardware, making it difficult for anyone to access those files. In the event the ChromeOS system requires servicing like a system board replacement, all data stored locally on the system will be lost and is no longer accessible.

Manual Data Backup

Dell Technologies recommends that you backup your data on the ChromeOS system regularly to prevent any potential data loss after a service incident.

ChromeOS Data Wipe

ChromeOS devices have data encrypted by default (with no option to unencrypt), and the keys are stored on the H1 chip (Google’s proprietary version of the TPM chip). If a System board is replaced, then data loss occurs. This is a "working as designed" behavior from Google, and it aligns with their "CloudOS" model.

ChromeOS Users should be encouraged to backup their local data regularly and before having the system board replaced.

Google Takeout allows Users of Google products to export their data to a downloadable archive file.
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Further information:

• Chromebook Security
• The Chromium Projects - Security Overview

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