You can find the official and community-archived autoloader files here:
(these variants often share the same autoloader). A common stable build is 10.3.3.2205 or later [ Step 2: Preparing Your PC Blackberry Z10 Stl100-3 Autoloader 10.3.3 Download
the cable until the window closes automatically or the device restarts. You can find the official and community-archived autoloader