Originally Posted by ej8903

I just wanted to say that after reading many of the reply's, I was hesitant to install 4.5 on my 8100 TMO phone. I think most of the issues involve third party applications, which I have very few of. I installed the new OS and it did take about 20 minutes once the phone initiated.

Two items of interest: The LED light would come on Red and stay on. It would only go off if I shut down and turned back on. After reading the forums, I removed the Color Pearl application and now it works fine.
The other issue is that I did not see the HTML email capability in my options. Again, after searching, I requested my service books from the BIS site, found in my email set up wizard. I received new books and now the option is there.

All in all, the new OS is great. I like the new phone functions and the calander changes. I would recommend upgrading to anyone with a 8100 phone. This version makes the BB look and act like a newer model.