Find the specific autoloader for the Bold 9900 (often labeled as "9900" or "Dakota"). Reliable community mirrors like the BlackBerry 10 & OS 7 Archive on Archive.org host these legacy files. Back Up (If Possible): Running an autoloader wipes all data
Follow the prompts to select your device and the software modules you wish to install. blackberry 9900 firmware autoloader
The (codename: Dakota ) was released in 2011 running BlackBerry OS 7.0 / 7.1 . Unlike modern smartphones that use recovery modes (e.g., iOS DFU, Android fastboot), BlackBerry OS devices relied on a low-level flashing tool known as the Autoloader . Find the specific autoloader for the Bold 9900