hallo .. i will try to explain how to upgrade and downgrade os blacberry own
straight course, the materials should be prepared:
1. pc / laptop
2. usb cables blacberry
3. BBSAK software
4. bb desktop manager
5. blackberry os that will be upgraded or downgraded
step 1: backup blackberry messenger contact with the bb desktop manager
Step 2: backup third-party applications with BBSAK
step 3: wipe blackberry device with BBSAK
step 4: install the os that was downloaded on your pc / laptop
step 5: go back BBSAK, connect with blacberry
Step 6: load os with BBSAK
Step 7: follow the instructions that appear to complete the wizard
after successful ..
step 8: backup restore contact with the bb messenger blackberry desktop manager
step 9: restore backup third party apps with BBSAK
Step 10: viola ... blackberry has been upgraded or terdowngrade ....
who want to download please:
BBSAK
bb desktop manager
