Dell Latitude 3310 Service Manual Download Page 105

Page: 105 / 107

The old version is already stored on the hard drive. The BIOS adds new version to the hard drive, maintains the old version, and deletes
other existing versions. For example, A00 and A02 versions are already on the hard drive, A02 is the running BIOS. The BIOS adds A04,
maintains A02, and deletes A00. Having two BIOS version enables the Rollback BIOS feature.

If the recovery file cannot be stored (hard drive is out of space), the BIOS sets a flag to indicate this condition. The flag is reset in the
event it later becomes possible to store the recovery file. The BIOS notifies the user during POST and in BIOS Setup, the BIOS recovery is
degraded. BIOS recovery through hard drive may not be possible, however BIOS recovery through USB flash drive is still possible.

For USB key: root directory or "\"

BIOS_IMG.rcv: the recovery image stored on the USB key.

BIOS recovery using hard drive

NOTE:

Ensure that you have the previous version and the latest version of the BIOS from the Dell support site available

to use.

NOTE:

Ensure that you have the file type extensions visible in the operating system (OS).

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:

a. If the hard drive is new, there will be no operating system installed.
b. 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

a) Open a Windows Command Prompt window.
b) At the prompt, type

diskpart

to start the

Microsoft DiskPart

c) At the prompt, type

list disk

to list out the available hard drives.

Select the hard drive that was installed in Step 3.

d) At the prompt, type

list partition

to view the available partitions on this hard drive.

e) Select

Partition 1

which is the

Recovery Partition

. The size of the partition will be 39 MB.

f) 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.

g) Create the following folders in

Local Disk (E)

E:\EFI\Dell\BIOS\Recovery

h) Copy both the BIOS files

BIOS_CUR.rcv

and

BIOS_PRE.rcv

to the recovery folder on

Local Disk (E)

i) 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

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