Amazon’s Fire Tablets are some of the cheapest tablets worth buying, especially if you can get one when it’s on sale. But Fire Toolbox v42 for Windows and Fire Toolbox v12 for Linux incorporates the latest exploit to give you system user-level control over the tablet. So you might want to seriously consider blocking OTA updates before you finish using Fire Toolbox. Here’s how to get started with Fire Toolbox:Download and install the latest version of Fire Toolbox on a Windows PC. Plug your tablet into the Windows PC using a USB cable.