WS-3850R-24T cannot be reset

[Sergic271]

Hi everybody,

While trying to reset my 3850T to factory defaults I faced the following: after holding Mode button for 7 sec and more (up to 40 sec), LEDS DO NOT STOP BLINKING and switch stays intact.

I unplugged/plugged power cable and did the same procedure again - no luck.

What could be the reason?

Serge

[Mark Malone]

Hi
The mode button may be broke not functioning correctly , you can factory it from cli if you have access either by wiping the contents of flash but keeping one bootable image , only other thing I could think of is its locked down with system disable password recovery switch all but I don't think that can block the mode button as it initiates the boot loader

[Sergic271]

The trick is I do not have access to cli :(

P.S. The switch is brand new

[Mark Malone]

If its brand new why is there no access they come with no config , just boot up to switch> prompt ?
Send it back I would if it wasn't working out if the box , RMA or DOA with supplier , without the mode button or access you cant factory reset it , only other way and not sure if this is supported when mode button is in place is try the break sequence during boot up see doc
https://www.cisco.com/c/en/us/support/docs/routers/10000-series-routers/12818-61.html

[Leo Laohoo]

If the switch is brand new, console into the switch and reboot.  

Post the entire boot-up process.  We want to see what this switch is actually doing.