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Dell 15z 5523 not booting – not powering on – 3 beeps of death

2016/06/21 Leave a comment

I got my hands on a Dell 15z 5523 which needed a hdd replacement. After some powercycles the system wouldn’t power on properly again. It just showed a black screen which leads to a loop of 3 beeps or autopoweroff after 1 minute. After playing with pressing the reset button under the ram lid and even removing the battery I only had partly success with booting only once and then gone again. The problem is the uefi firmware which is updated or better messed up by installing Windows 10. To recover from this error you dont need to disassemble the device at all! Here are the steps:

1. Download the latest bios from dell
2. Create bootable DOS usb stick
3. Copy the xxxx.exe to the usb stick and connect to the laptop
4. Press the key “D” and hold it
5. Press the power button
6. It will come up black first so power off again
7. Repeat starting with 4.
8. The system will finally boot but might keep beeping 3 times
9. Boot from the USB stick
10. Reinstall the BIOS with xxx.exe /forceit
11. It will reboot to install the Bios again
12. After that the Laptop will boot up again properly
13. (optional) If it boots but still keeps beeping you have to disassemble it and remove all powersources and remove the bios battery. Reinstall everything and the system should be fine!

If I could help you please donate 5-10 dollars/euros to your local animal shelter! 🙂

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Categories: Uncategorized

Dell XPS 15 (L502x) DVD CD-ROM drive problem

2013/01/06 2 comments

I’m running Windows 8 on my DELL XPS 15 with 256GB (3 seconds Windows boot time, any questions? :D).

So after some sleep and wake-up cycles of windows my CD drive HL-DT-ST DVD+-RW GT50N was not able to read DVDs / CDs anymore.

When a CD was installed the drive was spinning up very slowly and silent and just 2 loud movements of the optical slide and then nothing. No CD was identified at all.

Additionally, no error message was shown. Very strange.

So, i booted into my CentOS to verify the behavior. And, surprisingly, the same error occurred and the system was not able to read any disk.

I rebooted into Windows again, and as the behavior was still the same, powered of the laptop. Removed the battery and power connection. Waited for like 5 seconds, and bazinga.. the drive was working again, like nothing happened before.

As i never had these problems before, i think it might be some kind of energy-saving by Windows 8, which disables the drive and doesn’t wake up the drive completely, leaving it in an unusable state.

Internet Explorer, self signed certificates, shortcuts / pinned sites and the missing “Continue to website”-link phenomenon

2012/04/17 1 comment

Wow, Microsoft did a great job with introducing a new shortcut feature for websites with the extension .website

This will bring a lot of enhancements if you are a browser masochist and like to have pain accessing Intranet pages with self signed certificates.

So the default problem of websites with self signed certificates (admin consoles, switches, storage devices.. you name it) is the annoying popup, warning you to not access the site but rather close your browser.

Now, as used-to-microsoft-polemic-messages-admin you just go ahead and install the certificate in the trusted cert store, add the URL in the “Intranet” zone and drag-and-drop a link to you desktop and BAM.. the link is not working as you thought.

What happened? The “Continue to website (Not recommended)” link is missing. So how should you be able to access your trusted internal website with a self-signed cert if there is no option to continue?

Have a look into the shortcut you created to your site. Funny thing that link is saved as “.website”. As you might know, until now all internet shortcuts had the “.url” extension. Microsoft changed that and introduced the more secure and featuref**ing extension “.website”

Microsoft had and still has a lot of security problems which forces them to implement strange security “features”, like blocking every active content on not explicit allowed URLs (Windows 2003/2008 Strong Security enabled), blocking downloads you requested to force you to click again,… or rendering shortcuts to websites with “spoofed” insecure, certificates unusable.

If you create a shortcut to a website now, IE creates the file and sets some policy settings in it. If a website uses a self signed certificate, the browser checks the shortcut, and sets something like “Block Access, Self signed”. You can check that by changing contents of the shortcut (with notepad++ or similar) and save it. The next time you open it, Internet Explorer disables it again and writes it back to the file when the browser is closed.

Solution:

Delete all the website shortcuts created with Internet Explorer and create your own ones:

  1. Right-click on your Desktop and select “New- Shortcut”
  2. Enter the target URL e.g. http://www.google.de
  3. Enter the name for the link
  4. Click OK to finish the wizard.

This creates a file with a .url extension, which opens like charm.

You can also create new shortcuts with notepad.

  1. Create a new text file
  2. Put the following content in it:
  3. [{000214A0-0000-0000-C000-000000000046}]
    Prop3=19,11
    [InternetShortcut]
    URL=http://YOURURL
    IDList=
  4. Save it as <filename>.URL

That’s it. Your links are working again. Just prevent using the .website format.

Sony’s Kevin Butler twitters the battleship masterkey..

2011/02/10 Leave a comment

..too funny that the media agency didn’t know what that key means…

It’s time for a cup of fresh HMAC battleship coffee: