This small device facilitates flash drives 83850 V2 and 93450. It is based on the concept discovered by MRA (xboxhacker). You simply need to cut a couple of tracks on the reader's plate and install this device to enable full firmware reading/writing. The advantage of this device is that you will not have to dismantle the reader again to make reading in the future. It incorporates a mode called SMART MTK MODE which is responsible for placing your drive in MTK mode when you start it with the open tray. In this way you can make the full reading of the firmware of the reader. It also includes a DISHABILITATE mode, which puts the device in a deep sleep so that it does not enter MTK mode until it is RE-HABILITED by the user.