Yesterday I picked up a brand new unlocked 9790 from CEX in the UK. Now I want to update it from software version 7.0 to 7.1 because of the tether feature. Here is my problem:
Over-the-air: I cant seem to find the button names "software update" in the device menu.
Using desktop program: It says there is no update for my device. If I click on "other versions", it has the 7.1 update there and if i click on it it says the update "is only available to users with an active BlackBerry subscription. "
Where it tells you to delete the vender file, you will need to delete two of them. Assuming you are using a PC you can find them here (one is a hidden file).
C:\Users\*user name*\AppData\Roaming\Research In Motion\BlackBerry\Loader XML
C:\Program Files (x86)\Common Files\Research In Motion\AppLoader