BlackBerry DTEK60 Autoloader.
[INFO]Don't get burned by Factory Reset Protection, read this before installing!!!
Using Factory Reset Protection (FRP) on the BlackBerry device powered by Android[/INFO]
Don't install an older OS on top of a newer one, you have a very high chance of bricking your phone. If you need an autoloader newer than what's here, you'd have to contact BlackBerry support.
BB Knowledge Base article: How to reload the BlackBerry powered by Android OS on the smartphone
BlackBerry have released autoloaders for the DTEK60; factory images, plus a fastboot executable and the necessary .bat/.sh files to load the images. If your device gets bricked, or if your update schedule is thrown off, or whatever.
Instructions are in the Knowledge Base article above, if you need them. Be warned, it will wipe your stuff.
Available autoloaders on BlackBerry's site:
MARSHMALLOW
EVERYONE
AAW609 (March 2018 update)
BB's list
Mirrors and old autoloaders: http://forums.crackberry.com/bb10-le...rchive-943672/ (the DTEK60 folder)