Remove the battery from your BlackBerry 9900. Plug the Micro-USB cable into your PC first, then insert it into the phone . The phone's LED indicator may briefly flash red or display a battery symbol with a slash through it. Step 3: Run the Autoloader File
When the flashing tool says "Connecting to Bootrom," plug your BlackBerry 9900 into the USB port.
Before you click away, ensure your specific checklist is complete: blackberry+9900+autoloader+flash+file+hot
Ensure your BlackBerry battery has at least a 50% charge. If the phone is bootlooping, use an external wall charger to power the battery for an hour first.
The phone will reboot, and the tool will close automatically. Do not interrupt this process. Remove the battery from your BlackBerry 9900
Attempt to re-flash using a different version of the OS 7.1 Autoloader.
Before diving into the flashing process, it helps to understand what an autoloader actually is. In simple terms, a BlackBerry autoloader is a self-contained, executable file (ending in .exe ) that wipes your device clean and installs the entire BlackBerry operating system from scratch. Step 3: Run the Autoloader File When the
If the flash fails or the command prompt hangs, use these strategies to resolve the issue: