Use The Rma - Lenovo ThinkPad C13 Yoga Gen 1 Hardware Maintenance Manual

Use the RMA

Step 1. Remove the base cover assembly, disconnect the built-in battery from the system board, and then
attach the ac power adapter to the Chromebook.
Step 2. Press the power button together with esc and
displayed. Then, Press Ctrl + D to enter to the developer mode after the operating system
verification screen is displayed.
Step 3. Press the power button together with esc and
the Chromebook.
Step 4. The shim image will be automatically installed. The Chromebook will enter the factory-test-image
environment after the process is completed.
Step 5. Detach the ac power adapter, reconnect the built-in battery to the system board, and then reattach
the ac power adapter to the Chromebook.
Step 6. Remove the RMA USB key from the Chromebook and store it in a safe place.
Step 7. Start the RMA process.
Note: If you detect a defective component during the process, turn off the Chromebook, detach
the ac power adapter, and then replace the defective component.
Step 8. Follow the on-screen instructions to start the GRT. If the tests finish successfully, all data stored on
the Chromebook is deleted and the Chromebook is turned off. If the GRT fails, it might result from
hardware identity (HWID) mismatch and write-protect malfunction. Use the following information to
identify problems.
Problem
HWID mismatch
Note: You can terminate the GRT when the tests have to be bypassed because they cannot be
performed. To end the process, press f.
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Lenovo ThinkPad C13 Yoga Gen 1 Chromebook Hardware Maintenance Manual
. The Chrome operating system recovery screen is
. Then, connect the prepared USB storage drive to
Description
A set of valid hardware identities (HWIDs) is provided by Google. Google logs
the exact hardware combination into a Chromebook and creates an HWID. The
HWID is used for resetting the Chromebook to factory settings
HWID mismatch can be caused by using unauthorized or missing parts.