What is all the commotion with DAT0?
There are several connection points that need to be made between the modchip and the motherboard, DAT0 being one. On the original switch and the switch lite all the connections are accessible from the surface of the motherboard, so it is much easier to solder wires to the required points. On the Switch OLED, one of the points was routed directly from underneath the CPU through several layers to underneath the emmc memory chip. This was done to remove access to the point and stop modders. There are only a few ways to access this point and only 2 are common: a DAT0 adapter and the Kamikaze Method
What is a DAT0 adapter?
This is a thin flex cable that is slid underneath the emmc chip to connect to one of the balls underneath the chip. After sliding it under the chip, the modder then solders some anchor points to hold it in place. Below is a picture with the emmc removed, showing how the connection is made.
What are the drawbacks of the DAT0 adapter?
The DAT0 adapter is a pressure fitted connection using a flexible adapter. This introduces two problems. The first is that due to the flexible nature and warping due to the console heating and cooling means that the adapter will lose its flexibility over time and the pressure to the point frequently is lost. Another issue is because the connection is made with pressure, overtime the DAT0 flex and expecially the solder ball it pushes against will oxidize. Metals naturally oxidize when exposed to air and solder is notorious for this. This thin layer of oxidation can prevent contact to the DAT0 point. In most cases, mods done using this method (if done well) can last a long time, but eventually will fail. If done poorly it may only last weeks or months before failing.
What is the "Kamikaze Method"?
About 2 years (correct me if I am wrong) after the DAT0 method of modding OLEDs was found a new method was discovered. This method involved grinding through 2 layers of the motherboard in an area without any other traces in order to expose a the DAT0 in another area. This allowed modders to solder a wire directly to the DAT0 line, creating a permanent connection. This is the most reliable way to create a long-lasting mod for the OLED. The only drawback is that if done by someone unexperienced, it is very easy to destroy your console. Many less experienced modders and DIYers avoid this method due to the risks.
Not Your Average DIY Project
The Kamikaze Method is VERY RISKY if it is your first time. If you are a DIYer there is a high chance you will destroy your console even if you are following this guide closely. I typically recommend DIYers use the DAT0 method and just reseat the adapter if it fails. If you decide to do the kamikaze method, proceed at your own risk! Just take a look at some of the fails below and know this could be you.
We Are Experts in the Kamikaze Method
We have modded countless OLEDs with the Kamikaze method and have even created a tutorial on how to do it. If you're interested check it out here.
