I have curve 8310 with OS 4.2...
I have updated my OS via blackberry.com that i know is 4.5.0.110, but i dont know exactly what carrier for since we have to delete vendor.xml.
Nearly... I found my official carrier with OS 4.5.0.81, I re intall this official OS and my DM cant find any update. only one item (email application was found) but the OS still 4.5.0.110.
Please help me how to clearly rollback or install my official OS 4.5.0.81