Joining the Delta Link tool is a very handy AST 5408 service light reset tool. I’ve never used one — or seen one — so I can’t comment on particulars, but in roughly two weeks this little gem will be available to borrow.
It resets the Service light on 850s.

It’s being donated to the program by a wishes-to-be-anonymous MVS member. I’ve thanked him in private correspondence, of course. Things like this make me so proud to run this site.
Service Light Reset Tool Joining Loaner Program
UPDATE July 1: It’s here.
Last Updated on August 19, 2020

