I downloaded the latest GO (3.1.3) to my phone, connected to the RC, checked FW.
It showed RC 1.6, AC 1.10.
Uninstalled 3.1.3, installed 2.4.2. RC is still 1.6, but shows AC as 1.8.80+
Confusing. Getting tired of trying to make the downgrade work.
I might try GO 2.9.1, leave the AC at 1.10, and...