[bobo09]

hi i have a bb 9900 with bell, and i want to do the update, but every time i instal it and when the phone boots its still 7.0. can someone give me step by step instruction on how to do it right

[tr1ad]

use the search button....

first remove the previous os from your pc, install the os 7.1 and delete the xml file
back up data and use the apploader

[bobo09]

how do you remove previous os from computer

[DruGs]

how do you remove previous os from computer

by add/remove programs in control panel.

[bobo09]

so i delete 7.0 and leave the 7.1

[eds817]

Assuming you're using a PC.

Go to Control Panel -> App/Remove Programs (Programs and Features) and find BlackBerry Device Software. Click on it and remove it.

Next you want to download and install the OS you want on your phone.

I use BBBoss to shrink the OS, remove features I don't need or want. You can also have it delete the vendor.xml files.

Once this is done I go to C:\PROGRAM FILES\COMMON FILES\RESEARCH IN MOTION\APP LOADER and select Loader.exe.

Then just follow the on screen instructions.