Dingleberry jailbreak tool for Playbook which was available only for Windows is now updated to Dingleberry v.3.01, and its also available for Mac users.
Check also:
How to Find PlayBook IP Address
How to Find Wireless MAC Address on BlackBerry PlayBook
By using Dingleberry you can downgrade Playbook firmware and jailbreak the device to install unsigned Android apps.
You can grab latest Dingleberry according to your desktop OS through links below. To know Instructions to jailbreak Playbook with Dingleberry click on integrated link.
Download Dingleberry v.3.01 for Windows
Download Dingleberry v.3.01 for Mac
Download Dingleberry v.3.01 for Linux