Always do a backup of your Settings and Contacts using Desktop Manager and 3rd-party apps.
So you got a new Black Berry or you are simply tired of your old operating system on the device and want to want to upgrade it?
If you have never done this before, there are a few things you need to know.
The operating system provides multitasking and supports specialized input devices that have been adopted by Black Berry for use in its handhelds, particularly the trackwheel, trackball, and most recently, the trackpad and touchscreen.
The Black Berry platform is perhaps best known for its native support for corporate email, through Java Micro Edition MIDP 1.0 and, more recently, a subset of MIDP 2.0, which allows complete wireless activation and synchronization with Microsoft Exchange, Lotus Domino, or Novell Group Wise email, calendar, tasks, notes, and contacts, when used with Black Berry Enterprise Server. Updates to the operating system may be automatically available from wireless carriers that support the Black Berry over the air software loading (OTASL) service.
It was officially released in August 2011, making its appearance on the Black Berry Bold (9900/9930), Black Berry Torch (9810/9850/9860), and the Black Berry Curve (9350/9360/9370/9380).
Any smartphones running an earlier version of the Black Berry OS could not be updated to version 7.0.
Never unplug the Black Berry while the device is upgrading. If you do, there are ways to get it working again, but it’s troublesome.
Official OS from other Carriers and Leaked OS: Why is DM not detecting the update after installing on PC?
Third-party developers can write software using the available Black Berry API classes, although applications that make use of certain functionality must be digitally signed.