10-06-2021 05:15 AM
Hello.
I upgraded five of 3850-48F-L from 03.02.03.SE to16.12.6. After reload SYST was blinking fast (for about 2 hours) and nothing done. No output from console. After turning them off and turning them on there is no light on front panel and still no console output. After turning on fans just max out two short times and then spinning slowly.
I upgrade using cat3k_caa-universalk9.16.12.06.SPA.bin that was downloaded to flash:.
Then as written here
I use command to upgrade:
software install file flash:cat3k_caa-universalk9.16.12.06.SPA.bin
At the end I answer no to question
[1 2]: Do you want to proceed with reload? [yes/no]:
Because I wanted them to reload later.
After reloading they are in state I described at the beginning.
I tried holding mode button when plugging in, holding reset button, still nothing. All I was able to get to console was one character after turning on - � .
I am out of ideas. I hope they are not dead. Please help me.
10-06-2021 05:22 AM
Is this part of the STACK ?
Turn off the Device completly, wait for 10min,(connect the console cable - post complete output here) Turn ON follow below factory reset : ( try to change the baudrate on the console cable see if you get any output ?)
SYST was blinking fast - After that what LED show front ?
10-06-2021 06:34 AM
No switches are not stacked.
After turning on device:
-when using mini usb console output is nothing.
-when using serial console output is:
"
�
"
So I can not perform factory reset as described in link you provided
After more than 2 hours blinking SYST I tried to turn of and on device and then replace them with other devices because it was part of working infrastructure.
10-06-2021 05:27 AM
@kriza wrote:
After turning them off and turning them on there is no light on front panel and still no console output.
All 5 units are behaving like this?
10-06-2021 06:34 AM
Yes all five of them.
10-06-2021 03:47 PM
@kriza wrote:
Yes all five of them.
I find it hard to believe all five switches are dead.
Please verify if the console terminal is correctly set.
10-07-2021 02:28 AM
Yes I do not believe too.
I am trying:
screen /dev/ttyS0 9600
or
screen /dev/ttyACM0 9600
As described here
https://software.cisco.com/download/home/284455420/type/282855122/release/3.1
09-16-2022 06:58 AM
Hi guys !
I have a switch same model with the same problem.
Yestarday i try to upgrade firmware switch and after install firmware in the realod process switch is not back.
I and many people on the support team try all to start the switch we can not turn-on the switch.
We can not believe so the switch is dead.
01-24-2023 08:42 AM
I'm having this exact problem with a 3850-24P. Performed update using "software install" command. After a reboot I am in the same state as OP. No CLI output and no lights on the front. It sounds like a normal boot, with the fans running up to max and then winding down. I've tried every speed on the console line. I've tried holding the button on the front as well as pressing rapidly on power up and sending a break my terminal program. Nothing works. Hoping for an RMA at this point.
02-12-2023 02:53 PM
I have the same issue, after installing Gibraltar iOS switch is dead. No lights, no console connection.
02-12-2023 11:32 PM
Contact Cisco TAC and raise an RMA.
02-13-2023 04:26 PM
02-13-2023 05:31 PM
@Oleg8r wrote:
however I have a bunch of switches which need to be upgraded and I would like to know what went wrong before I touch them.
Ok, then I have a "big ask" (feel free to say "no"): List down the serial numbers of the dead switches. I am particularly interested in the first seven characters of the serial number (do not post the last four characters).
02-13-2023 07:01 PM
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