1. engrbugs's Avatar
    can i still downgrade my os... like say 7.1.190 to 7.0.xxxx
    01-10-12 07:12 PM
  2. GreenBerry84's Avatar
    Yes you can do it via AppLoader directly, which is the same as upgrading, or DM. On DM you need to select update under the Device tab and after its searched (and found none) you'll get the option to view and install 'other versions' which include any OS you've previously loaded onto the device using DM and also any OS it finds installed on your PC.
    01-10-12 07:21 PM
  3. engrbugs's Avatar
    hi thanks. but why i cannot upgrade? it says "you have to be blackberry service to install 7.1" i have no bbm service on my carrier subscription. should i need one or did i go wrong on off-line update?
    01-10-12 08:17 PM
  4. engrbugs's Avatar
    why my apploader does not detect my core system files? it only detect wifi music sync only? apploader wont work on latest dm?
    01-10-12 08:35 PM