Not up to speed on this ,but if the TIU is updated to the 6.1 does the handheld remote have to have anything done to it ?
I just ask because I have my TIU at 6.1 but when I pulled my spare remote out of the drawer to use it worked fine with adding engines and operating. I think the spare remote was purchased somewhere in the last year or year and a half.
And Lou..........The new Premier Santa Fe F7s run well with the old spare remote. ☺