It is a software package that reinstalls the device's operating system. You typically need it if:

Fixing devices stuck in boot loops or showing the dreaded JVM error screen.

BlackBerry 10 and BlackBerry OS Services FAQ — End of Life

Blackberry 9790 Flash File //top\\ «4K 2024»

It is a software package that reinstalls the device's operating system. You typically need it if:

Fixing devices stuck in boot loops or showing the dreaded JVM error screen.

BlackBerry 10 and BlackBerry OS Services FAQ — End of Life