Re: Cisco Phone Doesn't boot - Page 2

danarjamal · ‎02-20-2018

Hello Everyone,

I have a Cisco IP phone (7942) which doesn't boot, it doesn't even get an IP address from the DHCP server, it looks like it's dead, just the speaker button light is on. Now I want to connect to it through the console cable, I have created the console cable, but I cannot connect to it.

Kindly consider these:

1- There is nothing wrong with the DHCP server or the network.

2- The port on the switch is up and functional.

3- I have tested the console cable with other phones, but I am only able to get the information but I cannot send commands to it, but for this faulty phone am not even able to see the logs.

4- I have tried the hard reset procedures, it didn't work.

Basically, all the steps I have come up with, I have tried, but none of them did work.

my question is that anyone has ever solved this before?

note: One of my colleagues did fix the similar issue we had with some other phones, but I don't want to ask him the steps, now I want a hint from you guys. how to change the configuration of the phones through console cable, and second, why the faulty phone is not showing anything when i connect to it through console?

Your help is highly appreciated.

Leo Laohoo · ‎02-21-2018

@danarjamal wrote:

The image is "C2960X-UNIVERSALK9-M"

Post the complete output to the command "sh version".

danarjamal · ‎02-22-2018

Dear Leo, here is the show version output

SW1#show version
Cisco IOS Software, C2960X Software (C2960X-UNIVERSALK9-M), Version 15.0(2)EX5, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2014 by Cisco Systems, Inc.
Compiled Fri 21-Feb-14 05:54 by prod_rel_team

ROM: Bootstrap program is C2960X boot loader
BOOTLDR: C2960X Boot Loader (C2960X-HBOOT-M) Version 15.2(2r)E1, RELEASE SOFTWARE (fc1)

SW1 uptime is 23 weeks, 6 days, 4 hours, 19 minutes
System returned to ROM by power-on
System restarted at 03:50:16 UTC Fri Sep 8 2017
System image file is "flash:/c2960x-universalk9-mz.150-2.EX5/c2960x-universalk9-mz.150-2.EX5.bin"

This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to
export@cisco.com.

cisco WS-C2960X-48LPD-L (APM86XXX) processor (revision F0) with 524288K bytes of memory.
Processor board ID FOC1901S65P
Last reset from power-on
3 Virtual Ethernet interfaces
1 FastEthernet interface
154 Gigabit Ethernet interfaces
2 Ten Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.

512K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address : 20:4C:9E:xx:xx:xx
Motherboard assembly number : 73-15965-xx
Power supply part number : 341-0528-01
Motherboard serial number : FOC18517UPW
Power supply serial number : LIT18500F3D
Model revision number : F0
Motherboard revision number : C0
Model number : WS-C2960X-48LPD-L
Daughterboard assembly number : 73-14200-xx
Daughterboard serial number : FOC1902xxxx
System serial number : FOC1901xxxx
Top Assembly Part Number : 800-41462-xx
Top Assembly Revision Number : C0
Version ID : V02
CLEI Code Number : CMMLK00ARB
Daughterboard revision number : A0
Hardware Board Revision Number : 0x12

Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
* 1 52 WS-C2960X-48LPD-L 15.0(2)EX5 C2960X-UNIVERSALK9-M
2 52 WS-C2960X-48LPS-L 15.0(2)EX5 C2960X-UNIVERSALK9-M
3 52 WS-C2960X-48LPS-L 15.0(2)EX5 C2960X-UNIVERSALK9-M

Switch 02
---------
Switch Uptime : 23 weeks, 6 days, 4 hours, 32 minutes
Base ethernet MAC Address : 20:4C:9E:xx:xx:xx

Leo Laohoo · ‎02-22-2018

You need to upgrade the firmware of the switch. TDR isn't supported in EX range.

I suspect there is a faulty cable but without TDR you'll need to find alternative methods to verify all four pairs are working. I am suspecting that Pair A could be faulty. The problem is where is the fault: Near the switch or the far end.

danarjamal · ‎02-22-2018

I don't think the cable has an issue, because my Cisco Phone is connected to this cable, and I connected the faulty phone to the cable of my phone. My own phone is currently working without any issue.