2924-SFP Lost Password

[Claude]

Any help would be greatly appreciated! Trying to recover a 2924-SFP with a lost password. Tried the console with Ctrl + B and Ctrl + C to no avail. Documentation for the switch simply states for lost password contact 3Com.

[LPENA]

Hi Claude, I had the same problem and just resolve it.

Try this:



From a console connection



Enter the following key sequence (CTRL/SHIFT - (minus)) ONCE at the appropriate time



Baseline 2924

power cycle the switch

When "Testing the System SDRAM........PASS" is seen

CTRL/Shift - (minus)

When "Autoboot in 2 seconds- press Return or Esc" is seen

Press Enter Immediately

At The Startup Menu

Select Password Recovery

Select Back

[Claude]

Thank you so much! Worked like a charm!

[charvi]

Hi,

I have 3com 2924 - SFP PLUS on the desk - with forgotten password.

I have downloaded PUTTY, set the VT100+ mode with appropriate com port settings.

When I connect to the switch and power it on, I can see booting of the switch.

I even connect external keyboard to the laptop I am working on to get the switch reset, but still can't do that.

CTRL + B

CTRL + C

CTRL + SHIFT + "-"

Left control nor right controls button don't make the magic.

I am desperate :(

Could anybody make any video of sucessfull reset on youtube please?  Or how to proceed with this?

Please help

Thank you

Regards

Jakub

Log of screen below:

------ Performing the Power-On Self Test (POST) ------

UART Channel Loopback Test........................PASS

Testing the System SDRAM..........................PASS

Boot1 Checksum Test...............................PASS

Boot2 Checksum Test...............................PASS

Flash Image Validation Test.......................PASS

BOOT Software Version 1.0.0.14 Built 17-May-2007 12:35:42

Network Switch based on 88E6218 with ARM946E-S.
64MByte SDRAM. I-Cache 8 KB. D-Cache 8 KB. Cache Enabled.
Preparing to decompress...
100%
Decompressing SW from image-2
100%

OK
Running from RAM...

*********************************************************************
*** Running SW Ver. 01.00.07 Date 20-Mar-2008 Time 16:25:04 ***
*********************************************************************

HW version is 01.01.0a
Base Mac address is: 00:1e:c1:2c:8e:40
Dram size is : 64M bytes
Dram first block size is : 45056K bytes
Dram first PTR is : 0x1400000
Flash size is: 16M
01-Jan-2000 01:01:06 %CDB-I-LOADCONFIG: Loading running configuration.
01-Jan-2000 01:01:06 %CDB-I-LOADCONFIG: Loading startup configuration.
Device configuration:
Slot 1 - 3Com Baseline Switch 2924-SFP Plus

------------------------------------
-- Unit Standalone --
------------------------------------

Tapi Version: v1.3.3.1
Core Version: v1.3.3.1
01-Jan-2000 01:01:28 %INIT-I-InitCompleted: Initialization task is completed

01-Jan-2000 01:01:28 %SNMP-I-CDBITEMSNUM: Number of running configuration items loaded: 22

01-Jan-2000 01:01:28 %SNMP-I-CDBITEMSNUM: Number of startup configuration items loaded: 22
01-Jan-2000 01:01:30 %Box-I-SFP-PRESENT-CHNG: unit_id 1 SFP 0 status is not present.
01-Jan-2000 01:01:30 %Box-I-SFP-PRESENT-CHNG: unit_id 1 SFP 1 status is not present.
01-Jan-2000 01:01:30 %Box-I-SFP-PRESENT-CHNG: unit_id 1 SFP 2 status is not present.
01-Jan-2000 01:01:30 %Box-I-SFP-PRESENT-CHNG: unit_id 1 SFP 3 status is not present.

Login:

[LucaSaraceni]

Hello, 

I have the same problem, anyone of the following commands doesn't work:

CTRL + B

CTRL + C

CTRL + SHIFT + "-"

Is there any inside jumper that I can use to force the resetting ?

this is the screeshot:

------ Performing the Power-On Self Test (POST) ------

UART Channel Loopback Test........................PASS

Testing the System SDRAM..........................PASS

Boot1 Checksum Test...............................PASS

Boot2 Checksum Test...............................PASS

Flash Image Validation Test.......................PASS

BOOT Software Version 1.0.0.14 Built 17-May-2007 12:35:42

Network Switch based on 88E6218 with ARM946E-S.
64MByte SDRAM. I-Cache 8 KB. D-Cache 8 KB. Cache Enabled.
Preparing to decompress...
100%
Decompressing SW from image-1
100%

OK
Running from RAM...

*********************************************************************
*** Running SW Ver. 01.00.05 Date 11-Jun-2007 Time 00:34:37 ***
*********************************************************************

HW version is 01.01.0a
Base Mac address is: 00:1e:c1:21:d1:00
Dram size is : 64M bytes
Dram first block size is : 45056K bytes
Dram first PTR is : 0x1400000
Flash size is: 16M
01-Jan-2000 01:01:05 %CDB-I-LOADCONFIG: Loading running configuration.
01-Jan-2000 01:01:06 %CDB-I-LOADCONFIG: Loading startup configuration.
Device configuration:
Slot 1 - 3Com Baseline Switch 2924-SFP Plus

------------------------------------
-- Unit Standalone --
------------------------------------

Tapi Version: v1.3.3.1
Core Version: v1.3.3.1
01-Jan-2000 01:01:28 %INIT-I-InitCompleted: Initialization task is completed

01-Jan-2000 01:01:28 %SNMP-I-CDBITEMSNUM: Number of running configuration items loaded: 23

01-Jan-2000 01:01:28 %SNMP-I-CDBITEMSNUM: Number of startup configuration items loaded: 23
01-Jan-2000 01:01:29 %Box-I-SFP-PRESENT-CHNG: unit_id 1 SFP 0 status is not present.
01-Jan-2000 01:01:29 %Box-I-SFP-PRESENT-CHNG: unit_id 1 SFP 1 status is not present.
01-Jan-2000 01:01:29 %Box-I-SFP-PRESENT-CHNG: unit_id 1 SFP 2 status is not present.
01-Jan-2000 01:01:29 %Box-I-SFP-PRESENT-CHNG: unit_id 1 SFP 3 status is not present.

Login:

please help !!!!

[BurnedC]

 I have the same issue on the same model, pressed all possible combinations but the boot sequence just continues until the login.

No possibility to interrupt it. :(

[Maurizio64]

Salve, io ho provato in tutti i modi e i tempi la formula di ctrl+shift+meno ma non ho concluso nulla. Ho anche provato le combinazioni ctrl+B, ctrl+c, ma niente di niente lo switch continua il boot fino al completamento e poi richiede il login

[parnassus]

Potrebbe essere un problema di configurazione del terminale software utilizzato (PuTTY?) per il collegamento alla Console Seriale dello Switch...al di là di questo...rispolverare un thread vecchio di 10 anni non aiuta affatto...meglio creare un nuovo Thread nel quale si spiega bene la propria situazione nel quale si inserisce un link al Thread storico che si ritiene descriva bene il problema che si sta riscontrando...possibilmente il tutto in inglese (il 99% scrive in inglese e capisce solo l'inglese...trovare qualcuno che capisca e risponda in italiano è...raro).

[thetechstudent]

I managed to get this working on my Baseline 2924-SFP Plus switch using @LPENA's commands. See my setup details below in case you guys have different settings or using different gear...

USB -> RJ45 RS232 pins:

• RJ-45 DTE Pinouts RTS(1), DTR(2), TXD (3), GND(4), GND(5), RXD (6), DSR(7), CTS(8)

System versions:

• Boot: 1.0.0.14
• Software: 01.00.05
• Hardware: 01.01.0a

Serial configuration which was used in PuTTY:

• Speed: 38400
• Data Bits: 8
• Stop Bits: 1
• Parity: None
• Flow Control: None
• Backspace: CTRL+H
• Function Keys: "VT100+"

Shown below is the serial output:

**************************************************
*****************  SYSTEM RESET  *****************
**************************************************



------ Performing the Power-On Self Test (POST) ------

UART Channel Loopback Test........................PASS

Testing the System SDRAM..........................PASS

Boot1 Checksum Test...............................PASS

Boot2 Checksum Test...............................PASS

Flash Image Validation Test.......................PASS



BOOT Software Version 1.0.0.14 Built  17-May-2007  12:35:42

Network Switch based on 88E6218 with ARM946E-S.
64MByte SDRAM. I-Cache 8 KB. D-Cache 8 KB. Cache Enabled.

Now, Press "CTRL" and "-" (minus) button ONCE, and immediately press "ENTER" ONCE. It may take more than one attempt to enter the boot menu - so prepare to do this a few times.

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



     Startup Menu

[1]  Download Software
[2]  Erase Flash File
[3]  Password Recovery Procedure
[4]  Set Terminal Baud-Rate
[5]  Back
 Enter your choice or press 'ESC' to exit:

The switch will continue booting up if an option is not chosen. Choose an option as soon as this screen appears!