Allow App Installation from Unknown Sources - Blackberry®

Caution Your device and personal data are more vulnerable to threats such as Ransomware from apps downloaded from unknown sources. Here's some additional info about downloading from unknown sources and protecting your device against Ransomware.

  1. From a Home screen, navigate: Apps Apps icon > Settings Settings icon.
  2. Tap Settings.
  3. Tap the Unknown sources switch to to turn on Switch on or off Switch off.
  4. To continue, review prompt then tap OK.