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HP Chromebook and Chromebox - Troubleshooting Hardware Issues Using Crosh Diagnostics

This document applies to HP Chromebook and Chromebox computers with Chrome OS.
The Chrome operating system includes a shell environment called Chrome Shell (crosh). Crosh includes several diagnostic tests that can be used on all HP Chromebooks and Chromeboxes without enabling developer mode. Follow the steps in this document to use crosh commands, or another Chrome diagnostic tool, to troubleshoot Chromebook and Chromebox hardware issues.

Testing HP Chromebook battery health

The Chrome Shell (crosh) includes a simple battery health diagnostic test. Confirm that the HP Chromebook battery is charging, and test the battery health and discharge rate, using the steps in the following sections:

Testing SSD storage health

Use the steps in this section to test the health of the SSD storage drives on your HP Chromebook or Chromebox using crosh.
note:
The crosh diagnostic tool for testing storage health does not work on devices with eMMC memory.
  1. Power on the Chromebook or Chromebox and sign in to your account.
  2. Close any open programs or tabs.
  3. Press the ctrl + alt + t keys to open crosh.
    Crosh opens in a new browser tab.
    Figure : Crosh tab
    Crosh tab
  4. Type storage_test_1 into crosh, and then press enter.
    Figure : Crosh storage test 1
    Crosh storage test 1
  5. A screen displays the storage health test results.
    Figure : Crosh storage test 1 - completed without error
    Crosh storage test 1 - completed without error
    Check for failure messages that might indicate failing hardware.
    Figure : Crosh storage test 1 - example of failure
    Crosh storage test 1 - example of failure
    If your Chrome device features eMMC storage, the storage test does not run.
    Figure : Crosh unable to test eMMC storage
    Crosh unable to test eMMC storage
  6. Repeat the test using the command storage_test_2, and check for failure messages.
    Figure : Crosh storage test 2
    Crosh storage test 2
  7. Close the tab to exit crosh.

Testing the network adapter

If you are having trouble connecting to the Internet, use the steps in one or more of the following sections to test the network adapter on your HP Chromebook or Chromebox:

Testing memory

Use the steps in this section to test the memory on your HP Chromebook or Chromebox using crosh.
  1. Power on the Chromebook or Chromebox and sign in to your account.
  2. Close any open programs or tabs.
  3. Press the ctrl + alt + t keys to open crosh.
    Crosh opens in a new browser tab.
    Figure : Crosh tab
    Crosh tab
  4. Type memory_test into crosh, and then press enter.
    Figure : Crosh memory test command
    Crosh memory test command
    Wait while crosh runs the memory test. The test is complete when the word Done displays below the list of test results.
  5. A diagnostic screen displays the results of the memory health test.
    Figure : Crosh memory test results - pass
    Crosh memory test results - pass
    Check for failure messages that might indicate failing hardware.
    Figure : Crosh memory test - example of failure
    Crosh memory test - example of failure
  6. Close the tab to exit crosh.

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