I've tried everything I could find to fix my dead zoomtak remote (for a while only the coloured buttons worked, and it would be good for a couple of days then dead for a couple - now it's just dead) so I've been trying to find a decent IR or wifi app (android). Sync is okay but the back/return button is greyed out and it's kind of a necessary one.

I will also accept fixes for the remote. There's certainly a chance I missed a couple.

...and yes - I've changed the batteries.