There are a lot of different types of programmers out there but a popular model, most likely due it’s wide availability for low prices on Ebay, Amazon or Aliexpress, is the CH341a MiniProgrammer: In order to read and write the contents on our BIOS chip, we will need a programmer that can physically connect with it and perform those actions. This was the case for the Lenovo X1 yoga but also for the Dell Precision T1700 MT and some other systems I checked. Today, in my experience, most of the times, a SOIC-8 package is used. If this is no longer the case, you will need to reprogram the BIOS using another device.īIOS chips come in several different packages.
Obviously, for that to work, the system still has to be able to boot. The BIOS is mostly only used during the initial boot time and can safely be reflashed on a started system. The easiest is by running a BIOS update/programming tool directly on your working machine. There are several ways to (re-)program the contents on your BIOS chip. If you prefer classic text, you can just follow the rest of this article: If you are interested, I also created a YouTube video from this blogpost. For this article, I will repeat the steps I took, on a Dell Precision T1700 MT. In this post you can find the documented steps I took to reflash the BIOS and bring my laptop back to life.Īs mentioned in the introduction, the BIOS chip from my Lenovo X1 Yoga laptop got corrupt and I managed to repair things by reflashing it with a working BIOS ROM. To fix this, I purchased the CH341a MiniProgrammer. Recently I got in the situation where the BIOS chip in my Lenovo X1 Yoga got corrupt. To fix this situation but also for other reasons like simply a backup, tuning, modding or enabling hidden features, flashing your BIOS ROM is interesting.
In some rare cases, the BIOS chip in your system can become corrupt, which will return your system completely unusable. Without a working BIOS, even the most powerful hardware can’t be brought to life.
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