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162 lines
6.0 KiB
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162 lines
6.0 KiB
Markdown
---
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title: hp Spectre x360 BIOS Update
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language: en
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layout: default
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created: 2016-07-28 02:30:21 +0200
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updated: 2016-07-28 02:30:21 +0200
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toc: false
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tags:
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- know-how
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- hardware
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- hp
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- spectre
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- bios
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- update
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---
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BIOS updates are actually done via the hidden `HP_TOOLS` service partition which
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you can get to by pressing <kbd>F2</kbd> after switching on the notebook or from
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the *Startup Menu*. The update you download from the hp service page merely
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copies the new BIOS files to that partition.
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{: width="400px"}
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However, if you deleted that partition or switched to Linux for your operating
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system, things get a little bit complicated.
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Hidden partition deleted
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========================
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So you deleted the hidden `HP_TOOLS` partition when setting up your new
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operating system. The only effect you'll notice is that the *System Diagnostics*
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option in the BIOS (<kbd>F2</kbd>) will look a bit dull:
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{: width="400px"}
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But don't worry, this can easily be fixed. You only need a spare USB flash
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drive and a Windows 7 (or newer) VM or PC. Then do this:
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1. Download [HP PC Hardware Diagnostics](http://h41336.www4.hp.com/go_techcenter_pcdiags)
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from the hp support page (first item, ~23 MiB, formerly known as *HP UEFI
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Support Environment*)
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1. Run your Windows 7+ VM or get to a Windows 7+ PC.
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1. Plug in the empty flash drive (or connect it to your VM).
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1. Run the downloaded installer and choose to **Install to USB**.
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That's it. You now have a `HP_TOOLS` flash drive which contains the same as the
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hidden partition you deleted. And this includes a tool to update your BIOS
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firmware.
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You can check if everything went correctly by plugging the flash drive to your
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Spectre, rebooting and pressing <kbd>F2</kbd> before the operating system loads.
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Now, the *System Diagnostics* should look way different:
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{: width="400px"}
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Updating the BIOS firmware
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==========================
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Now to the actual updating of the BIOS firmware. Of course, you first have to
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download the BIOS firmware from the [Spectre's support page](http://support.hp.com/gb-en/drivers/selfservice/hp-spectre-13-4100-x360-convertible-pc/8499273/model/8902244).
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Find a PC (or VM) with Windows XP (or newer) and proceed as follows:
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1. Plug the flash drive to the Windows machine.
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1. Run the downloaded installer and select the *Install to USB stick* option
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when asked.
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1. Eject the flash drive and plug it into your Spectre.
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1. Switch on the Spectre and press <kbd>F2</kbd> a few times until you end up
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in the *HP PC Hardware Diagnostics UEFI* tool.
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1. Click on ***Firmware Management***.
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Now you should be seeing this screen:
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{: width="400px"}
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Click on *BIOS Update*, confirm that you really want to update the BIOS and
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that the new version is newer than your current one. Then just wait for it to
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finish and the Spectre to boot up again.
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No Windows available
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====================
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In the case there's no Windows VM or PC available to you whatsoever, you could
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try unpacking the installers manually.
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HP PC Hardware Diagnostics
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--------------------------
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First, use `7za` to unpack the downloaded `SP123456.exe` file. This will give you
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a `setup.exe` from that package, because hp wraps the actual installer in another
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file.
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With that `setup.exe`, you can run `wine setup.exe /a` to run it in *admin* mode.
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(See [here](http://stackoverflow.com/questions/8681252/programmatically-extract-contents-of-installshield-setup-exe).)
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Select your language and watch the *Extracting HP PC Hardware Diagnostics UEFI.msi*
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progress bar. Now the important part: **As soon as the dialog finishes**, press
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<kbd>Ctrl</kbd>+<kbd>C</kbd> to abort the process so the installer doesn't
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delete its temporary folder again.
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Now search the windows temp folders for some folder like `{15EC3F6C-EA46-43B7-9B8A-132F011C1436}`
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(differs each time). This could be in `~/.wine/drive_c/windows/temp/` or
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`~/.wine/profile/Local Settings/Temp/`. In there, you'll find a file `HP PC Hardware Diagnostics UEFI.msi`.
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This can be unpacked with `7z x "HP PC Hardware Diagnostics UEFI.msi"` (`7za`
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won't work!), but it won't restore the proper file names. Luckily, there's also
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a `Data1.cab` in there, which you can extract with `cabextract Data1.cab`. This
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one contains the proper filenames.
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Now, on your empty *vfat* formatted flash drive, create the following directory
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structure:
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* Hewlett-Packard
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* BIOS
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* Current
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* New
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* Previous
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* BIOSUpdate
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* SystemDiags
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(Yes, that's a `Hewlett-Packard` directory in the root folder, `BIOS`, `BIOSUpdate`
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and `SystemDiags` below that and `Current`, `New` and `Previous` below the `BIOS`
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directory.)
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From the extracted files, copy `CryptRSA.efi` and `CryptRSA32.efi` to `BIOSUPdate`
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*and* `SystemDiags`. Copy all the `HPBios*` files to the `BIOSUpdate` directory
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and all `HPSysDiags*` and `SystemDiags*` files go to the `SystemDiags` dir.
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This should be sufficient to make it work. (No guarantees!)
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BIOS Firmware
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-------------
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Here, you can unpack the installer from the `SP123456.exe` with `7za`. But
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I can't find a way to unpack the extracted installer file as this seems to be
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some custom application. Also it uses some specific driver (probably to access
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the BIOS) which breaks wine.
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So for this, you'd definitely need access to some Windows XP (or newer) PC or
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VM. However, since you already have the prepared flash drive, it's only a matter
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of plugging that in, running the installer and selecting the *Install to USB
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stick* option.
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You can also use the *Advanced* option to extract the BIOS files to a separate
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directory and copy those manually onto your flash drive to this directory:
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Hewlett-Packard/BIOS/New/
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The files are named `0802D.*`, `08035.*`, `0804E.*` and `0804F.*`. Each as
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`*.bin` and `*.sig`.
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*[BIOS]: Basic Input/Output System
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*[VM]: Virtual Machine
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*[USB]: Universal Serial Bus
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*[PC]: Personal Computer
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*[HP]: Hewlett-Packard
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