SG350-10P in boot loop - Serial number and HW version missing?

[HKaschube]

Hi,

I have got a SG350-10P which is booting in a loop. 

The serial output is as follows:

BootROM 1.41
Booting from NAND flash


General initialization - Version: 1.0.0
Serdes initialization - Version: 1.0.2
PEX: pexIdx 0, detected no link
DDR3 Training Sequence - Ver TIP-1.56.0
DDR3 Training Sequence - Switching XBAR Window to FastPath Window
Updated Physical Mem size is from 0x20000000 to 10000000
DDR3 Training Sequence - Ended Successfully
BootROM: Image checksum verification PASSED


ROS Booton: May 26 2019 14:16:26

Press x to choose XMODEM...
Booting from NAND flash

Running UBOOT...


U-Boot 2013.01 (Nov 29 2023 - 14:38:47) version: 2014_T3.0 V3.5.7.13


NAND ID = 0xDA01
NAND Model = Spansion 2Gb 8bit
Loading system/images/active-image ...
[   15.026843] I2C frequency 100 kHz (Tclk 200 MHz, freq_m 12, freq_n 3)
BOOTP ubi: Starting Boot...


MAC address   :  10:f9:20:85:93:3a.

Autoboot in 2 seconds - press RETURN or Esc. to abort and enter prom.

*****************************************************************
*** Running SW Ver. 2.5.9.54  Date Nov 29 2023  Time 14:36:03 ***
*****************************************************************

HW Revision is V
Serial Number is
Base Mac address is: 10:f9:20:85:93:3a
Dram size is  : 512M bytes
Flash size is: 256M
29-Nov-2023 02:37:14 %CDB-I-LOADCONFIG: Loading running configuration.
29-Nov-2023 02:37:14 %CDB-I-LOADCONFIG: Loading startup configuration.
Device configuration:
Slot 1 - SG350-10P
Device 0: CPSS_98DX3233
CPLD version is: 0x0e
CPU speed: 800 MHz
Coredump mode 1 (disabled)

--------------------------------
Unit factory default
--------------------------------

29-Nov-2023 02:37:19 %UDLD-F-INIT_FAILED: UDLD initialization error: Device-ID TLV should contain the switch serial number.

***** FATAL ERROR *****
Reporting Task: ROOT.
Software Version: 2.5.9.54 (date Nov 29 2023 time 14:36:03)
base_address=0x00418000
ros(+0x799180)[0xbb1180]
ros(HOSTG_fatal_error+0x14)[0xbb4618]
ros(OSSYSG_fatal_error+0x258)[0x10c84c0]
ros(+0xaa2d40)[0xebad40]
ros(NETG_udld_init1+0x84c)[0x11abe9c]
ros(NETG_init+0xac)[0x1210030]
ros(+0x7be1ec)[0xbd61ec]
/lib/libp2linux.so.1(task_run+0xf4)[0xb6ed3840]

***** END OF FATAL ERROR *****

**************************************************
*****************  SYSTEM RESET  *****************
**************************************************
[   57.096359] reboot: Restarting system

Interesting to me seem the topmost two of these four lines:

HW Revision is V
Serial Number is
Base Mac address is: 10:f9:20:85:93:3a
Dram size is  : 512M bytes

 I already uploaded the newest firmware I found at Cisco via XModem.

Does anyone have any suggestion how to reanimate the switch?

All the best,

  Heiko

[marce1000]

  - This looks like a hardware issue to me , try a factory reset, which probably is the only thing to do as a last hope action , 

 M.

[HKaschube]

Hi,

THX for the reply. Pressing reset even for minutes does not take any effect. Still boot looping. Is there perhaps a battery I could disconnect or a jumper or something like that inside the switch?

I am thinking about what we called "CMOS reset" in former times. 

All the best,  Heiko

[marce1000 · Accepted solution]

  - I don't think any of those are applicable (battery , jumper) ; it seems that the device can no longer read the serial number from some ROM component (probably). In my view you can only RMA for this case. You may want to have an opinion from Cisco :
          https://www.cisco.com/c/en/us/support/web/tsd-cisco-small-business-support-center-contacts.html

 M.

[liviu.gheorghe · Accepted solution]

I'm almost certain that is not an option anymore.

I agree with @marce1000 that it's most probably a hardware issue and that you should think of replacing it. You can check if it's covered by warranty or support here: https://cway.cisco.com/sncheck/

HTH

[HKaschube]

THX.

Device is out of warranty or support, so support by Small Business TAC is limited.

Cheers, Heiko