The following paper treats this subject as a technical analysis of the BlackBerry 10 architecture, the historical context of the Pangu team, and the security implications of such a hypothetical or misunderstood firmware modification.
Official releases for standard consumers. blackberry firmware pangu bb10-0015
The error code is a fatal boot error indicating that the BlackBerry 10 operating system is corrupted or that a "reload" process was interrupted. JustAnswer Error Overview: BB10-0015 The following paper treats this subject as a
Flashing an autoloader will completely erase the device's internal storage. blackberry firmware pangu bb10-0015