Could we get clarification if devices that were never downgraded to AirOS 5.5 will work if moved to 3.16.2.0?
With 3.16.1 and earlier we had to do the 5.6 to 5.5 downgrade, so those should always be safe.
For the nightly builds this downgrade was not needed (and maybe 17RC1 too?). One could go out of the box, directly to a nightly build. However, attempting to go to 3.16.2RC1 a few weeks ago would near brick that never-downgraded node, requiring TFTP recovery.
A number of forum members reported bricks during the 3.16.2RC1 phase. I replicated it twice unforunately. It's not an unusual situation since the XW version of the nanostation needed 17RC1 and/or a nightly when it first came out, so there are a number of these cases out there. Some may not remember the initial install path they did a year ago.
Thanks,
Ian