Because official links are down, you must rely on archives. The CrackBerry Forums are the best source for archived OS files. 1. Official OS 6.0.0.749 (Recommended)
Download the autoloader using your chosen archival link. If it is a compressed file, extract it using an application like WinRAR or 7-Zip. Move the resulting .exe file directly to your desktop for easy access. Step 2: Open the Autoloader blackberry 9800 autoloader link
Unlike newer BB10 devices where you just run a single file, the usually requires these steps: Download Firmware Because official links are down, you must rely on archives