Not necessarily. Wipe with JL_Cmder in Boot ROM mode (hold Alt + Shift + H while connecting USB). Then flash the correct 9790 file.
If your PC doesn’t detect the BlackBerry properly: blackberry 9790 flash file
Original BlackBerry devices were often sold "locked" to specific carriers, loaded with branding and bloatware. Flashing a "Debranded" or "Stock" OS version can remove these carrier-specific apps, giving you a cleaner, faster experience. Not necessarily
In the BlackBerry community, you will hear two terms often: giving you a cleaner