Provide first Desktop Manager on your Laptop, Desktop Manager software usually can be found on the CD at the time of buying a Blackberry, but when it lost its CD can be downloaded directly from HERE.
Once the download is also official BB OS fit your type of providertelecommunications in the country in sinias you select in the region continue to choose the category telecommunications what you use or another appropriate provider you use, adjust and select the type of BB os download which you want.
After that Donwload also BBSAK (BlackBerry Swiss Army Knife) that will be useful to facilitate the downgrade or upgrade here
After the required three programs already exist, then the next step is to install the software one by one, after the third software installed do not forget to Restart your computer.
Furthermore connect your BB is currently in keaadaan life to your computer or laptop, and turn on the Desktop Manager (DM). Backup all your important data, which is necessary in the backup data residing in the internal memory alone, because at the time of upgrading all data will be lost / emptied, so therefore I recommend that you backup your data first.
One thing not to be forgotten is removing vendor.xml file located in C: \ Program Files \ Common Files \ Research In Motion \ AppLoader
Run BBSAK, enter the password if it exists, but if it is not empty it.
Select "Wipe OS", which is to delete all data older OS. and wait until your blackberry will reboot and it says error 506 on your blackberry screen that indicates that in the BB OS is not installed anymore.
Start the installation. can be started by double clicking on the file loader.exe located in the folder C: \ Program Files \ Common Files \ Research In Motion \ AppLoader or with meklik button "Load OS" in windows BBSAK.
Then the wizard window will appear, then follow the step by step, check the applications you want to install BB wait until you reboot, and to consider installing a new OS will require a long time so even though on your BB screen does not appear anything but the keyboard you light up, let it go until there is an image appearing on your screen indicating that the installation process is complete.
Restore your data back to the DM.
Finished, you already bb downgrade or upgrade according to your desire before :)so many of my articles may be useful for you :)
How to Install BB OS downgrade or upgrade with BBSAK 9 out of 10 based on 10 ratings. 9 user reviews.Di terbitkan pada :