The final bits for Windows Phone 7.5 “Mango” leaked online on Friday.
The release to manufacturing (RTM) build 7720 of Windows Phone 7.5 “Mango” has been made available thanks to a workaround for handsets. Microsoft employees have been able to flash their devices to the final bits over the past week and it appears the tools used to do so have leaked. XDA-Developers has posted the tools and instructions for users on NoDo (7390), Mango (7661) and Mango beta refresh (7712). .It’s worth noting that the build does not contain specific OEM customisations or updated device specific firmware so if you flash to the RTM build then you do so at your own risk. For information on how to acquire the tool and instructions please see the XDA-developers thread.
Microsoft is currently testing its final RTM build alongside device OEMs and carriers in preparation for its upcoming rollout over the next two months. Microsoft is expected to unveil a number of new Windows Phone 7.5 “Mango” devices at the IFA consumer electronics show in Berlin on September 1. The final bits for Windows Phone 7.5 “Mango” will be distributed in a similar way to the NoDo update with specific updates for each different device. If you want the latest and greatest then take the risk but if you want a stable device with updated drivers and bug fixes then hold off until Microsoft distributes the official bits in the coming months.