Hi all, I have two eDLTs that have a dead screen. I can see them on the network in toolkit (1.16.0), as they show up as being alive on the network. When I try to make a change to them, once I click 'apply', I get an error message: 'an error happened when saving to unit. I have not tried to upgrade their firmware - it is 5-5-00. Does anybody have a fix for this? These are not cheap to replace. Thanks in advance Dave