HP VR Backpack G2 Maintenance And Service Manual page 62

Table 12-1 Troubleshooting steps for nonvolatile memory usage (continued)
Nonvolatile
Memory Type Amount (Size)
Bluetooth flash 2 Mb
(select products
only)
802.11 WLAN 4 Kb to 8 Kb
EEPROM
Webcam (select 64 Kb
products only)
Fingerprint reader 512 KB flash
(select products
only)
54 Chapter 12 Statement of memory volatility
Does this Does this
memory memory
store retain data
customer when power
data? is removed?
No Yes
No Yes
No Yes
Yes Yes
What is the
purpose of this How is data input into this
memory? memory?
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 webcam Webcam 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?
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.