Dell Latitude 5420 Rugged Service Manual

BIOS recovery using hard drive

1. Browse to the location of the BIOS update executable (.exe) files.
2. Rename the BIOS executable files to BIOS_PRE.rcv for the earlier version of the BIOS and BIOS_CUR.rcv for the latest version of the BIOS.
   For example, if the latest version’s file name is PowerEdge_T30_1.0.0.exe, rename it to BIOS_CUR.rcv and if the previous version’s file name is PowerEdge_T30_0.0.9.exe, rename it to BIOS_PRE.rcv
   NOTE

   1. If the hard drive is new, there will be no operating system installed.
   2. If the hard drive has been partitioned at the Dell factory, there will be a Recovery Partition available.
3. Disconnect the hard drive and install the hard drive into another system that has a full operational operating system.
4. Start up the system and in the Windows operating system environment follow these steps to copy the BIOS recovery file to the Recovery Partition.
   1. Open a Windows Command Prompt window.
   2. At the prompt, type diskpart to start the Microsoft DiskPart.
   3. At the prompt, type list disk to list out the available hard drives.
      Select the hard drive that was installed in Step 3.
   4. At the prompt, type list partition to view the available partitions on this hard drive.
   5. Select Partition 1 which is the Recovery Partition. The size of the partition will be 39 MB.
   6. At the prompt, type set id=07 to set the partition ID.
      NOTE The partition will be visible to the operating system as Local Disk (E) to read and write data.
   7. Create the following folders in Local Disk (E), E:\EFI\Dell\BIOS\Recovery.
   8. Copy both the BIOS files BIOS_CUR.rcv and BIOS_PRE.rcv to the recovery folder on Local Disk (E).
   9. In the Command Prompt window, at the DISKPART prompt, type set id=DE.
      After the executing this command, the partition Local Disk (E) will not be accessible by the OS.
5. Shut the system down, remove the hard drive, and install the hard drive into the original system.
6. Start the system up and boot to System Setup, in the Maintenance section ensure that BIOS Recovery from Hard Drive is enabled in the BIOS Recovery section of the setup.
7. Press the power button to shut the system down.
8. Holding the Ctrl and Esc keys, press the power button to start the system up. Keep holding the Ctrl and Esc keys until the BIOS Recovery Menu page is displayed.
   Ensure that the Recover BIOS radio button is selected and click Continue to start the BIOS recovery.