HP Engage Go 13.5 Maintenance and Service Guide - Page 106
Questions and answers, Save Changes and Exit
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Table 11-1 Troubleshooting steps for nonvolatile memory usage (continued) Nonvolatile memory type Amount (Size) Does this memory store customer data? Does this memory retain data when power is removed? What is the purpose of this memory? How is data entered into How is this memory this memory? write-protected? 802.11 WLAN 4 kilobits to 8 No Yes Stores 802.11 WLAN EEPROM A utility must be used EEPROM kilobits configuration is programmed at the for writing data to and factory. Tools for writing this memory and is calibration data to this memory are typically not made data. not made public. available to the public unless a firmware upgrade is necessary to address a unique issue. Camera 64 kilobits No Yes Stores Camera memory is A utility must be used (select camera programmed using a for writing data to products only) configuration utility from the device this memory and is and manufacturer that can typically not made firmware. be run from Windows. available to the public unless a firmware upgrade is necessary to address a unique issue. Fingerprint 512 KB flash Yes Yes Stores Fingerprint reader Only a digitally signed reader (select fingerprint memory is programmed application can make products only) templates. by user enrollment in the call to write to the HP ProtectTools Security flash. Manager. Questions and answers Use this section to answer your questions about nonvolatile memory. 1. How can the BIOS settings be restored (returned to factory settings)? IMPORTANT: The restore defaults feature does not securely erase any information on your hard drive. See question and answer 6 for steps to securely erase information. The restore defaults feature does not reset the Custom Secure Boot keys. See question and answer 7 for information about resetting the keys. a. Turn on or restart the computer, and then quickly press esc. b. Select Main, and then select Apply Factory Defaults and Exit. c. Follow the on-screen instructions. d. Select Main, select Save Changes and Exit, and then follow the on-screen instructions. 2. What is a UEFI BIOS, and how is it different from a legacy BIOS? The Unified Extensible Firmware Interface (UEFI) BIOS is an industry-standard software interface between the platform firmware and an operating system (OS). It replaces the older BIOS architecture but supports much of the legacy BIOS functionality. Questions and answers 99