Member Avatar for adrian_fraggy06

Hello there. Can anyone help me on my problem.I am resetting the password when I got messed up with my Cisco 1800 series router. I accidentally reset the GIO ASIC version 0x127.

here's what i did:
rommon 1 > confreg 0x127


You must reset or power cycle for new config to take effect
rommon 2 > reset

Then the output is this. Even I restart the router it still gives me this characters.

=³ø&<vøæ<ï=&&&3þÓøþõøüøüøøøøøüøøôôýøøøøøøøøøüüôøøõýøøøøøøøøøøøøøôøøøøøøõøøôøøøøõ
øøøøøøøøøøøõøøøüøôøøõøøøøøøøøøøøøøøøôøõôøøõôøøøøøýøøõøøøøøøøøøøøøøøýøøøøøøøøxß<Ÿ
øþùøøøôøøøøøøøøøôøøý þýüüüŸýøüþø üýøõý ýþýýþ üøüýøþ÷üþüþüýþüþöùøøüøøýýø üýþúü øý
üþøþõüùøûúùúúû÷úúüüýýøþ üþüöüýþüþüùøøõøøøúøýü üøüýõøüýýþ ýþóøþýý üþýøüýô þýøü
øýúøüýúûöùüþüüþýùýöùø ýþþüýýøúúýûøúüøùøþý÷ýüþýøþýýŸŸþ úøüŸ? ŸŸýþ ùøöýþ øþ
ü ü÷ üüþøüþøýý÷ø þýýýøýýùùøüüþüýøúúùøúøþýþüü÷øþþýüùüþþýüøôüý ýþýüüýóøýöüýøüýýý
üý÷þü üýýøüþøûûôüü þø üýýø ü üøþüþü þ¾~}ýûúúüôüþ ýþøýøõUèB4 ü


I hope someone can help me on this.

Thank you in advance.

adrian_fraggy06

  • 9 Contributors
  • 11 Replies
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  • 2 Years Discussion Span
  • Latest Post Latest Post by Diupre

Dani AI

Generated

Short diagnostic summary and recommended steps (concise)

What likely happened: changing the configuration-register to an unexpected hexadecimal value can change the ROMMON/console behaviour (including the console baud rate) and/or boot behaviour. Garbled characters on boot are most often a serial-parameter mismatch (baud/flow-control) but can also mean the boot image is damaged or flash/ROMMON needs recovery. appears to have changed the register and then lost a usable console/boot path; other members (, ) found that reinstalling IOS fixed the unit, which is a valid last-resort. (www3-realm.cisco.com)

Immediate triage (do this first)

  • Verify the console adapter and drivers, set terminal to 9600, 8, N, 1, no flow control (that is the 1800 default). If nothing prints or text is garbage, try common alternate speeds (19200, 38400, 57600, 115200) while power-cycling to watch boot output. (www3-realm.cisco.com)
  • If you can get into ROMMON, check/reset any BAUD variable (some ROMMONs support set BAUD / unset BAUD) or use the confreg UI to restore console rate. Changing the config-register bits controls console line speed. (cisco.com)

Password-recovery safe procedure (standard, do not skip backup)

  • From ROMMON: set the register to ignore startup-config, reboot, then copy startup-config into running, reset the passwords, restore the register, save, reload.

    (at ROMMON)   confreg 0x2142
(at ROMMON)   reset
Router>       enable
Router#       copy startup-config running-config
Router(config)# enable secret <new-secret>
Router#       config-register 0x2102
Router#       write memory
Router#       reload

    Follow Cisco’s documented password-recovery steps for your platform before doing anything destructive. (cisco.com)

If the router still shows garbage or won’t boot IOS

  • The IOS in flash may be corrupted. Use ROMMON tftpdnld (network) or xmodem (console) to reload an IOS image; ROMMON has variables (IP_ADDRESS, TFTP_SERVER, TFTP_FILE) you set before tftpdnld. Reinstalling the image is the approach reported as successful. Back up any readable configuration/CF card first. (cisco.com)

Final cautions

  • Don’t use no service password-recovery unless you understand it—it disables console recovery. If hardware errors (GIO/ASIC messages) persist after reloading an image, the box may need repair/RMA or replacement. (cisco.com)

If required, platform-specific ROMMON output and exact command names vary by IOS/ROMMON level—use the 1800-series hardware and ROMMON docs as your reference. (www3-realm.cisco.com)

Recommended Answers

All 11 Replies

Member Avatar for Ann13

Hello there. Can anyone help me on my problem.I am resetting the password when I got messed up with my Cisco 1800 series router. I accidentally reset the GIO ASIC version 0x127.

here's what i did:
rommon 1 > confreg 0x127


You must reset or power cycle for new config to take effect
rommon 2 > reset

Then the output is this. Even I restart the router it still gives me this characters.

=³ø&<vøæ<ï=&&&3þÓøþõøüøüøøøøøüøøôôýøøøøøøøøøüüôøøõýøøøøøøøøøøøøøôøøøøøøõøøôøøøøõ
øøøøøøøøøøøõøøøüøôøøõøøøøøøøøøøøøøøøôøõôøøõôøøøøøýøøõøøøøøøøøøøøøøøýøøøøøøøøxß<Ÿ
øþùøøøôøøøøøøøøøôøøý þýüüüŸýøüþø üýøõý ýþýýþ üøüýøþ÷üþüþüýþüþöùøøüøøýýø üýþúü øý
üþøþõüùøûúùúúû÷úúüüýýøþ üþüöüýþüþüùøøõøøøúøýü üøüýõøüýýþ ýþóøþýý üþýøüýô þýøü
øýúøüýúûöùüþüüþýùýöùø ýþþüýýøúúýûøúüøùøþý÷ýüþýøþýýŸŸþ úøüŸ? ŸŸýþ ùøöýþ øþ
ü ü÷ üüþøüþøýý÷ø þýýýøýýùùøüüþüýøúúùøúøþýþüü÷øþþýüùüþþýüøôüý ýþýüüýóøýöüýøüýýý
üý÷þü üýýøüþøûûôüü þø üýýø ü üøþüþü þ¾~}ýûúúüôüþ ýþøýøõUèB4 ü


I hope someone can help me on this.

Thank you in advance.

adrian_fraggy06

Hi!

Just ask if you resolved this problem?


Thank you
Anne

Member Avatar for ipcbcory

There's some great resource material on the Cisco 1800 located here

Member Avatar for spinqa

I just got this too, so was there ever an answer?

Member Avatar for kylejean

I think it is complex. Re-install a system can be solve the problem.

Member Avatar for spinqa

I think it is complex. Re-install a system can be solve the problem.

Yeah I pretty much ended up doing just that.

Member Avatar for greg.stunt

Google for the manual! Good luck!

Member Avatar for spinqa

I re-installed the software and thanks to all for your input.

commented: Please i have the same problem now how can i re-install the software if the rommon do not apear in the console mode +0
Member Avatar for affes_abder

hello ,
can you please tell me how to resolve this issue . I have same issue ... I cannot fix it .

tHanks

Member Avatar for affes_abder

hello adrian,
could you please help on this issue :
rommon 2 > reset

Then the output is this. Even I restart the router it still gives me this characters.

=³ø&<vøæ<ï=&&&3þÓøþõøüøüøøøøøüøøôôýøøøøøøøøøüüôøøõýøøøøøøøøøøøøøôøøøøøøõøøôøøøøõ
øøøøøøøøøøøõøøøüøôøøõøøøøøøøøøøøøøøøôøõôøøõôøøøøøýøøõøøøøøøøøøøøøøøýøøøøøøøøxß<Ÿ
øþùøøøôøøøøøøøøøôøøý þýüüüŸýøüþø üýøõý ýþýýþ üøüýøþ÷üþüþüýþüþöùøøüøøýýø üýþúü øý
üþøþõüùøûúùúúû÷úúüüýýøþ üþüöüýþüþüùøøõøøøúøýü üøüýõøüýýþ ýþóøþýý üþýøüýô þýøü
øýúøüýúûöùüþüüþýùýöùø ýþþüýýøúúýûøúüøùøþý÷ýüþýøþýýŸŸþ úøüŸ? ŸŸýþ ùøöýþ


your help will be appriciated ...

Member Avatar for jingda

Can you please start a new thread and post a problem. Thanks

Member Avatar for Diupre

Hello,

do you have solved ... How ???

Please


Hello there. Can anyone help me on my problem.I am resetting the password when I got messed up with my Cisco 1800 series router. I accidentally reset the GIO ASIC version 0x127.

here's what i did:
rommon 1 > confreg 0x127


You must reset or power cycle for new config to take effect
rommon 2 > reset

Then the output is this. Even I restart the router it still gives me this characters.

=³ø&<vøæ<ï=&&&3þÓøþõøüøüøøøøøüøøôôýøøøøøøøøøüüôøøõýøøøøøøøøøøøøøôøøøøøøõøøôøøøøõ
øøøøøøøøøøøõøøøüøôøøõøøøøøøøøøøøøøøøôøõôøøõôøøøøøýøøõøøøøøøøøøøøøøøýøøøøøøøøxß<Ÿ
øþùøøøôøøøøøøøøøôøøý þýüüüŸýøüþø üýøõý ýþýýþ üøüýøþ÷üþüþüýþüþöùøøüøøýýø üýþúü øý
üþøþõüùøûúùúúû÷úúüüýýøþ üþüöüýþüþüùøøõøøøúøýü üøüýõøüýýþ ýþóøþýý üþýøüýô þýøü
øýúøüýúûöùüþüüþýùýöùø ýþþüýýøúúýûøúüøùøþý÷ýüþýøþýýŸŸþ úøüŸ? ŸŸýþ ùøöýþ øþ
ü ü÷ üüþøüþøýý÷ø þýýýøýýùùøüüþüýøúúùøúøþýþüü÷øþþýüùüþþýüøôüý ýþýüüýóøýöüýøüýýý
üý÷þü üýýøüþøûûôüü þø üýýø ü üøþüþü þ¾~}ýûúúüôüþ ýþøýøõUèB4 ü


I hope someone can help me on this.

Thank you in advance.

adrian_fraggy06

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