I purchased this cable per suggestion from this post: https://www.msh-electronics.com/forum/general-discussions/brain-software-on-android-tablet-for-non-bluetooth-brain-2/#post-3781
I also ordered a Crius BlueTooth module, which has not yet arrived.
I did notice that the cable does not have the same wire color order at both ends, and the connectors are slightly different shapes. It's clear to me which end is to be plugged into the Brain 2 sysport, and which is plugged into the Crius.
My question: since the color order is different, is the end that plugs into the Crius in the correct color order? That end is: black, green, red, yellow.
Yes, the SYS connector on the flight controller and the Bluetooth dongle connector have different pin configurations, so the wires are arranged differently in the two connectors. Therefore, the cable is correct.
Thank you!