did anyone ever hear back from Davis on this? I just upgraded to a 6153 and am having the same problems.
AZ170216013
FW 3.63
backlight shuts off in 15 seconds if no keys are pressed, maybe 60 seconds if a key is pressed.
I want it to stay on unless i hit Lamps again to turn it off when it's AC powered.
among the many troubleshootings I've done - tried holding down Lamps after hit 2nd to turn on backlight, no dice.
batteries are out of the VP2 now, so it's definitely on AC power. no dice.
calibrated indoor temp and indoor humidity down and up respectively in case it needed to believe i wanted to leave backlight on, no dice.
so i emailed Davis support tonight to see what's going on, if this is a 'feature' that is removed in current models or FW, and if so how can i override it or get it back in a future FW update!