I just "upgraded" from the Spark to the MA. I had been using the latest version of Go4 with my Nexus 7 2013 (I really like my tablet and don't want to buy a Mini4). With the Spark, it worked ok but from time to time video was..spotty. I'd like to ensure no video drops with the MA so I'm thinking about trying 4.2.12 or .16 as alternatives. When I setup the MA I did upgrade firmware to the latest . My question is do I need to downgrade the firmware in order to use an older version of the app?