BlackBerry Desktop Manager requires legacy BlackBerry drivers, which frequently conflict with modern Android or iOS drivers. An autoloader embeds its own temporary drivers. You plug in the phone, run the .exe , and it just works.
Open the Autoloader file on your Windows PC first. It will open a command prompt window saying "Connecting to Bootrom." The "Battery Pull" Trick: blackberry bold 9900 autoloader better
If you want, I can: 1) suggest specific autoloader filenames/versions compatible with the Bold 9900 (I’ll search), or 2) give step-by-step screenshots—tell me which. Open the Autoloader file on your Windows PC first
If you use the standard AppLoader method, you must delete vendor.xml from C:\Program Files (x86)\Common Files\Research In Motion\AppLoader or the update may not show up . Let’s get empirical
Let’s get empirical. I tested a BlackBerry Bold 9900 that had been in a drawer for three years (running OS 7.1.0.258, bogged with old BBM data) against the same device after loading (the final and best autoloader build).