yes i just rechecked it.
it was ctrl+alt
and its been changed since jb4.3
I just rechecked the list i have,
didn't use an external one sense jb 4.1
and the list i have as below:
For the initial keyboard support these key combinations are supported
for Talkback:
>
> - ctrl-alt-right Move accessibility focus to the next element
> - ctrl-alt-left Move accessibility focus to the previous element
> - ctrl-alt-up Move accessibility focus to the first element
> - ctrl-alt-down Move accessibility focus to the last element
> - ctrl-alt-enter Click on the element with accessibility focus
> - ctrl-alt-h Global home gesture
> - ctrl-alt-backspace Global back gesture
> - ctrl-alt-n Open the notifications drawer
> - ctrl-alt-r Open the recent screen
> - ctrl-alt-z Suspend TalkBack (this was here previously)
and after they changed it:
The following keyboard shortcuts are available for devices running
Android 4.3 and above.
Action
Shortcut
Navigate between elements Alt + Shift + Arrows
Click focused element Alt + Shift + Enter
Back Alt + Shift + Backspace
Home Alt + Shift + h
Recent apps Alt + Shift + r
best.