As you are want to download Mobile Banking App of Bank of America for BlackBerry 10, so follow these instructions:

Instructions to Download Mobile Banking App of Bank of America:

Visit on Homepage of Official Website of Bank of America.

There is a link in Right Middle Side for Mobile Banking App. Click on that link and reach on a new page that looks like following screen shot:



You will see link to Get the App in left middle side. Click on it and see a Pop Up Box. Select Mobile Operating System and download App.