I bought my SB-400 used from B&H a little over a year ago. It was great at first, but now it powers up, ready light comes on, flash options are available in D850 and Z6 menus, but no flash! Or, occasionally, a flash but not a proper exposure.
I would dearly like to get it fixed as I know of nothing else as light and handy. Is there any chance of doing so? The Nikon repair center online estimator won't accept it.
If it can't be fixed, is there a reasonable replacement, similarly small, using 2 AA's, similar quality?
