Lenovo 10e Chromebook Tablet Hardware Maintenance Manual page 33

from hardware identity (HWID) mismatch and write-protect malfunction. Use the following
information to fix problems.
Problem
HWID mismatch
Write-protect
malfunction
Note: Only force the GRT to end when the tests have to be bypassed because they cannot be
performed. To end the process, press f.
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 the following purposes:
• Auto-update new patches and software for the lifetime of the Chromebook
• Reset the Chromebook to factory settings
HWID mismatch can be caused by using unauthorized or missing parts. If the
write-protect function is not turned off before recovering the Chromebook with
the USB repair shim, it can also cause HWID mismatch.
The Chromebook system cannot be finalized until the write-protect function is
turned on.
.
Chapter 3 Create and use a USB repair shim
27