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HP EliteBook 835 G7 Maintenance And Service Manual page 100

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Table 11-1
Troubleshooting steps for nonvolatile memory usage (continued)
Nonvolatile
memory type
Amount (Size)
Intel Management
1.5 MB or 7 MB
Engine Firmware
(present only in
select Elite or Z
models. For more
information, go to
http://www.hp.com/
support. Select
Identify your
product for
manuals and
specific product
information, and
then follow the
on-screen
instructions.)
Bluetooth flash
2 megabits
(select products
only)
802.11 WLAN
4 kilobits to 8
EEPROM
kilobits
Camera (select
64 kilobits
products only)
Fingerprint reader
512 KB flash
(select products
only)
90
Chapter 11 Statement of memory volatility
Does this
Does this
memory
memory
store
retain data
customer
when power
data?
is removed?
Yes
Yes
No
Yes
No
Yes
No
Yes
Yes
Yes
What is the
purpose of this
How is data entered into this
memory?
memory?
Stores
Management Engine Code is
Management
programmed at the factory.
Engine Code,
Code is updated via Intel
Settings,
secure firmware update
Provisioning
utility. Unique Provisioning
Data and iAMT
Data can be entered at the
third-party data
factory or by an
store.
administrator using the
Management Engine (MEBx)
setup utility. The third-party
data store contents can be
populated by a remote
management console or local
applications that have been
registered by an
administrator to have access
to the space.
Stores
Bluetooth flash is
Bluetooth
programmed at the factory.
configuration
Tools for writing data to this
and firmware.
memory are not publicly
available but can be obtained
from the silicon vendor.
Stores
802.11 WLAN EEPROM is
configuration
programmed at the factory.
and calibration
Tools for writing data to this
data.
memory are not made public.
Stores camera
Camera memory is
configuration
programmed using a utility
and firmware.
from the device
manufacturer that can be run
from Windows.
Stores
Fingerprint reader memory is
fingerprint
programmed by user
templates.
enrollment in HP
ProtectTools Security
Manager.
How is this memory
write-protected?
on the HP website; go to
http://www.hp.com/
support. Select Find your
product, and then follow
the on-screen
instructions.
The Intel chipset is
configured to enforce
hardware protection to
block all direct read-write
access to this area. An
Intel utility must be used
for updating the
firmware. Only firmware
updates digitally signed
by Intel can be applied
using this utility.
A utility must be used for
writing data to this
memory and is made
available through newer
versions of the driver
whenever the flash
requires an upgrade.
A utility must be used for
writing data to this
memory and is typically
not made available to the
public unless a firmware
upgrade is necessary to
address a unique issue.
A utility must be used for
writing data to this
memory and is typically
not made available to the
public unless a firmware
upgrade is necessary to
address a unique issue.
Only a digitally signed
application can make the
call to write to the flash.

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