I have a Runcore 64GB LIF SSD in my Air. Apparently it's still running 1571 version of firmware. I would like to upgrade that to the latest 1916. Couple of questions: 1. Which firmware executable do I use for this particular drive? 2. Is it safe to flash 1571 straight to 1916? I heard some users had problems if one doesn't flash to an interim version first 3. Is there a write up how to do this flash on Mac anywhere? I found one for Rev A but not 100% sure it's exactly the same as Rev B/C since controllers are different Thanks.