build 748

repro steps
1. Connecting Reader ( 2.2.13) with right configuration for the RSU installer.
2. navigate to Start to update screen, and click Next.
3. while updating in progress, unplugged the Reader around 80%-90% completion 
4. In final screen ( update unsuccessful), click 'Try again'.
5. go through every screen and start updating again
6. Check the text below the progress bar.

actual result:
it shows 'updating vuptodate'

Expecting:
no sure what string we need. Does this string localized, too?