Originally Posted by Private Message
I would truly appreciate your help, I have bought the software IM+ to have instant messaging in my BlackBerry 7280, however according to the vendor it is necessary for me to upgrade my OS from the original 18.104.22.168 to an OS 4.x
I have seen in the forum you have kindly sent several sites to download OS 4.x for many countries such as UK, Australia and many carriers like Cingular, O2, etc. nevertheless my BlackBerry was bought in Mexico and my carrier is Telcel.
I wonder if I can download the upgrade from any site and use it with my equipment.
I really appreciate any help you could provide me with.
Thanks and regards!
Do you have the APN for Telcal? Do you have a full BlackBerry plan (email and web working)? Then it should not be a problem.
Just follow these instructions: BlackBerryOS Upgrade Downloads
(Download somebody else's BlackBerryOS 4.0 and then follow the 'delete vendor.xml' instruction) Configuring Internet On BlackBerry - WAP/APN/Gateway Settings
(Make sure you find the APN for Telcal)
Then IM+ should likely work. (If APN is not possible, get some cheap Hosted BES
solution which should work.)