Devteam Pro 4.1 brings several highly anticipated tools and under-the-hood enhancements to improve efficiency:
Always verify the GPG signature before installation: Devteam Pro 4.1 Download
Assuming you've considered these points, here's a step-by-step guide: Devteam Pro 4
Download the PwnageTool_4.1.dmg file and install the app. Once launched, you will see the main window with a list of supported devices. Devteam Pro 4.1 Download