Firepower 3105 - System boot up has failed

[rstockum]

Hello folks
We are having a lot of trouble with a brand new firepower 3105 device.
After the initial setup the device switched off spontaneously - as if the power supply was interrupted, which was not the case.
After switching it on again, the status LED immediately lights up amber and nothing happens - no output on the serial console and no other visible or audible changes.
We have tried everything obvious to resolve this condition - factory reset, replacing the power supply and replacing the SSD - nothing has helped.
We must therefore assume that there is a hardware defect and that the device needs to be replaced.
It may also be important to know that we plugged an SFP module (Cisco SFP-10G-SR) into a port of the fixed network module shortly before the device switched off. The CLI still showed that the device recognized the SFP module correctly (type and serial number of the SFP were displayed), but the system crashed in the middle of outputting further outputs.

We then tested the SFP module in another device - the module is completely OK. The type is also on the compatibility list for the Firepower 3100 series.

Does anyone have any idea what could have happened here - what could be the cause of this crash?

Thank you in advance!

[MHM Cisco World]

remove SFP and check FTD 
dont add SFP until you sure it compatible with FTD 

MHM

[rstockum]

Hi - thanks for your quick reply!
We have of course removed the SFP module again, but it has not changed the situation.
And yes - the module is compatible according to the list.
Nevertheless the question - could an incompatible SFP module completely destroy the FTD?

THX!

[MHM Cisco World]

little chance that FTD is damage by SFP and since you use cisco SFP and compatible with FTD then you are in safety side 
open TAC with cisco sure this FTD will RMA device. 

MHM

[Aref Alsouqi]

No, I ran into scenarios where incompatible SFPs were plugged into FTD devices without causing any issue to the box, you just can't use them and the device would tell you that the plugged SFP is not supported.

[rstockum]

Hi Aref, thx for your reply!
Good to know - that is exactly what we expected.

[MHM Cisco World]

FYI 

@Aref Alsouqi @rstockum 

https://serverfault.com/questions/1135906/can-wrong-sfp-module-damage-equipment

so never try add incompatible sfp 

and I hope this not what you face 

Goodluck 

MHM 

[rstockum]

... no, it was an original cisco SFP-10G-SR transceiver

[MHM Cisco World]

I know you already mentioned that and hence cisco can not blame you.

Your are in safety side friend 

MHM

[Aref Alsouqi]

You're welcome.

[Marius Gunnerud]

This BUG sounds a lot like what you are experiencing. Contact TAC is the solution.

But while we wait on TAC.  What software version are you running on FMC and FTD?

Do you get any output from the console when you try to boot the FTD?

[rstockum]

Hi Marius, thx for your reply!
The FTD version is 7.3.1.19 and no, there is no output on the serial console when switched on - the device immediately goes into error status without any output.
FMC is not yet involved. The FTD came fresh out of the box and was switched on for the first time for the initial setup.

We will open a TAC Case
Thanks to everyone for the suggestions!

[Marvin Rhoads · Accepted solution]

TAC is the only way to resolve this definitely. Please open a TAC case.