I wrote too soon. No errors are present and data ports work, but POE does not seem to be restored. The switch does not respond to a POE device.

I have a WS-C2960X-48FPS-L that developed the same problem. I updated from 15.0(2a)EX5 to 15.2(7)E9, via USB thumbdrive since none of the ports are functional. The firmware update appears to have restored switch and POE operation. All errors are now ...