Since the official BlackBerry download system is no longer available, users must rely on external archives:
Once you have located a firmware link and downloaded the .exe file (the "handheld software"), follow these steps to flash your device: TechCrunch blackberry 9630 firmware link
OS 5.0.0.1078 is often cited by enthusiasts as one of the last stable releases for this model. Where to Find Firmware Download Links Since the official BlackBerry download system is no