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Step 6.
If the factory test items reveal a defective component, turn off the computer, disconnect the ac
power adapter, and then replace the defective component.
Step 7.
Turn on the computer.The computer should starts to the factory-test-image environment again. It is
recommended that you run Final Function Test (FFT) to ensure that new components function
correctly.
Step 8.
Run the GoogleRequiredTests.If the tests finish successfully, all data stored on the computer will
be deleted and the computer will be turned off. If the GoogleRequiredTests fails, refer to "Common
issues leading to GoogleRequiredTests fail" on page 26.
Note: If any test is marked as failed, the final process cannot be completed. The final process can
be forced to end by pressing the f key. Do not force the final process to end when a component
fails the test. Force the final process to end only when the test has to be bypassed because it
cannot be performed.
After the repair process is completed, the built-in battery is disabled. The system is in a clean out-of-box
state. In order to turn on the computer, attach the ac power adapter to the power connector on the computer
first. If applicable, customers must re-enroll the system for enterprise enrollment.
Note: ROM-write protection is re-activated after the repair process.
Factory test items
When the computer restarts to the factory-test-image environment, factory test items will run automatically.
Table 2. Factory test items
Test item
Stress Test
FATP Test
GoogleRequiredTests
Description
The Stress Test is designed to test how the system
functions under stress by running the maximum workload
applications. The Stress Test includes the test of memory,
microprocessor, and graphics card. The test takes about
10 minutes to finish.
The FATP Test is designed to test the individual
component to verify its function, such as the display,
audio, camera, keyboard, and other components. It is
recommended that you run all the FATP Test items. Some
test items might require an HDMI monitor or an SD card. If
the devices are not available, the tests can be bypassed,
but with the overall test marked as failed. This will require
the finalized step of the GoogleRequiredTests to be
forced in order to complete the servicing of the computer.
GoogleRequiredTests checks the system status and
helps reset the system back to the factory-default
settings. If any tests fails, the system cannot be finalized.
.
Chapter 3
Create and use a USB repair shim
25
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