Prolific 2023 driver on Windows 10

Go to device manager Right click on the prolific usb to serial adapter and select update driver. Select browse my computer Select from a list of devices Uncheck the checkbox next to supported devices Scroll down the list and select prolific Select the driver from 2007 Select next Done References: Todo (link to the forum post who referenced this method)

How to flash bios chips with Raspberry Pi

This post is an addition to my previous post: “How to flash bios chips with Arduino“. While doing some research online I found several articles/posts from people using a Raspberry Pi to flash SPI flash chips. Apparently the Raspberry Pi  is very suitable for this kind of thing as it has a SPI interface and is able to run linux. I was eager to try this out for myself so I got out my Pi 3 model B and got to work. For this project I used a Winbond 25X80 salvaged from a motherboard I had lying around. Outline of… Read More »How to flash bios chips with Raspberry Pi

Adding a YubiKey to Lastpass

In the beginning of this year I got a YubiKey NEO from a colleague. As I was already using LastPass to manage my passwords I wanted use my YubiKey as part of the two factor authentication process. You can register your YubiKey by going to the premium “Multi-factor options” in your LastPass account settings and enabling the YubiKey option. For the two factor authentication to work you need to press the button on the YubiKey to generate a OTP (One Time Password) which will be stored with LastPass. When I tried this for the first time I ran into a… Read More »Adding a YubiKey to Lastpass

Acer Aspire 5040 WiFi fix

After performing a clean install of Windows 7 on a Acer Aspire 5040 I found that the WiFi was not was working. According to the users on this is because Acer’s Launch Manager application was not installed. This piece of software will enable the WiFi switch which in turn allows you to enable WiFi. To install the Launch Manager on Windows 7: Download and unarchive the Launch Manager Select and right click “Setup.exe”: Select properties Change the compatibility mode to Windows XP Exit properties Select, right click and select “Run as administrator” References: Acer Aspire 5040 Launch Manager… Read More »Acer Aspire 5040 WiFi fix

How to flash bios chips with Arduino

In this post I will explain how to flash bios chips with an Arduino. We will be using a Arduino Duemilnove (uno, mega or clones do also work) and a ASUS P5B motherboard that no longer boots after a failed bios update. Here is an outline of the steps (some of these steps are not strictly necessary but I figured they might help the uninitiated): Identify board Find documentation for the board Locate and identify bios chip Find documentation for the chip Find pinout and operating voltages (important) Prepare the Arduino and installing flashrom Connecting the Arduino to the chip… Read More »How to flash bios chips with Arduino