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Author Topic: ZyXEL VMG1312-B10A - Flashing Firmware Problem  (Read 2095 times)

ferokia

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ZyXEL VMG1312-B10A - Flashing Firmware Problem
« on: February 07, 2023, 09:55:12 PM »

I have a VMG1312-B10A with very old firmware.

I tried to upgrade with the firmware files at https://github.com/johnson442/custom-zyxel-firmware/releases from the web interface.

I get the error "Image uploading failed. The selected file contains an illegal model id."

Do these models have a "model id"?
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Edinburgh_lad

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Re: ZyXEL VMG1312-B10A - Flashing Firmware Problem
« Reply #1 on: February 07, 2023, 10:44:13 PM »

Thing is: ZyXEL VMG stuff is very good, but the lack of (regular) firmware updates makes me wonder how secure these still are. Clearly some companies are better at updating firmware of their products than others. So, when choosing equipment, it's probably best to take that into account. (And forget about trying to match the chipset of the modem at home to that of the exchange for the sake of an extra 1Mbps or even 2.)

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j0hn

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Re: ZyXEL VMG1312-B10A - Flashing Firmware Problem
« Reply #2 on: February 07, 2023, 11:47:24 PM »

Thing is: ZyXEL VMG stuff is very good, but the lack of (regular) firmware updates makes me wonder how secure these still are. Clearly some companies are better at updating firmware of their products than others. So, when choosing equipment, it's probably best to take that into account. (And forget about trying to match the chipset of the modem at home to that of the exchange for the sake of an extra 1Mbps or even 2.)



That's a bit of a moot point in a thread about a firmware mod for bridge mode.
Most of us use the Zyxel VMG1312-B10A as a bridge modem only.
It has 100Mb/s LAN ports and no 5GHz WiFi.
Nobody is using it online as a router.

It has no access to the internet, no gateway defined even.
The fact the firmware is old makes not a bit of difference.
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Weaver

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Re: ZyXEL VMG1312-B10A - Flashing Firmware Problem
« Reply #3 on: February 08, 2023, 02:02:06 AM »

Hello Ferokia, and welcome to the forum!

How did you upgrade the unit - what procedure did you use?

I have never seen this problem, and I have more than half a dozen VMG 1312-B10As. I wonder if the image loader code is too old. Maybe could upgrade to the latest ZyXEL firmware and then to the johnson firmware. Or maybe you have to upgrade to an old but less old ZyXEL image and then repeat that if necessary. I had a router recently that had very out of date firmware and had exactly this boot loader problem, so I had to upgrade several times in stages.
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ferokia

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Re: ZyXEL VMG1312-B10A - Flashing Firmware Problem
« Reply #4 on: February 09, 2023, 02:04:02 AM »

Quote
How did you upgrade the unit - what procedure did you use?

I tried upgrading the firmware through the web interface of the unit. In Maintainance/Firmware Upgrade.

Quote
I have never seen this problem, and I have more than half a dozen VMG 1312-B10As. I wonder if the image loader code is too old. Maybe could upgrade to the latest ZyXEL firmware and then to the johnson firmware. Or maybe you have to upgrade to an old but less old ZyXEL image and then repeat that if necessary. I had a router recently that had very out of date firmware and had exactly this boot loader problem, so I had to upgrade several times in stages.

The only official firmware I found, was the latest at https://support.zyxel.eu/hc/en-us/articles/4403361365778-CPE-Devices-Advanced-Downloads-Firmwares-and-other-resources-
It is version "1.00(AAJZ.17)C0". Still, I get the same error about "illegal model id". Therefore, the image loader must be indeed old.

Is there a place where I can find the full list of firmwares in order to upgrade one at a time?
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tubaman

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Re: ZyXEL VMG1312-B10A - Flashing Firmware Problem
« Reply #5 on: February 09, 2023, 07:58:07 AM »

Do you definitely have a VMG1312-B10A and not a VMD1312-B10D as they are totally different devices?
If is a B10A then perhaps it was an ISP version?
There is a way to get to a lower level of firmware loading on these - I think you hold the reset button in, apply power and keep the reset held for about 10 seconds. You should then be able to get to the firmware flash page at 192.168.1.1. I think you'll need to assign your PC a static IP to do this as there will be no DHCP from the router.
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Weaver

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Re: ZyXEL VMG1312-B10A - Flashing Firmware Problem
« Reply #6 on: February 09, 2023, 10:00:11 AM »

I don’t have an answer to your question, but maybe our good friends might know of a location for ancient but less ancient firmware files.

It might just be worth trying the ‘post-bad flash’ emergency recovery procedure, which is as follows:


   •    Set your machine to 192.168.1.11 / 255.255.255.0 / gateway 192.168.1.1
   •   Plug ethernet cable into modem’s port 2 or 3 and into your main switch
   •   Power the modem off
   •   insert a pokey implement into the modem’s reset hole to depress the switch (NB there is a similarly sized but protruding WPS button)
   •   Power modem on, keeping poker poked in all the time still
   •   Keeping poker in, LED will flash for 25s then go solid red
   •   Release poker
   •   If the device is left in the solid red light mode then a recovery webpage should become visible at http://192.168.1.1, but only if the ethernet cable is connected to port 2 or 3. Port 1 or is it 4 -which is it ?-will not work, depending on which way you read the port numbering. (I think the port on the far right is the bad one.)
   •   in the modem’s web page’s file selector prompt, select the firmware file <something>.bin
   •   After you hit [enter] at the load firmware prompt, after so many secs the screen should change to show a [back] button. (If not, then you may have put the ethernet cable in the wrong port, so check it is in port 2 or 3)
   •   Takes forever to blow flash, no UI feedback
   •   after ~2 minutes the modem will reboot (no progress indication)
   •   When the modem web UI comes up, at http://192.168.1.1, log in with username=admin, password=1234 (or username=supervisor, password=zyad1234 )
   •   Forced password change, set password to your choice
All done.



Config file loading: If you are then loading your own saved XML config file:
   •   using the usual web UI menu option "configuration" > "restore", choose an XML config file
   •   When you have waited for a minute or so, hit refresh in the web browser
   •   you have to make sure that you go back into the the "configuration" menu again, then the modem will reboot
   •   The modem’s IPv4 address will possibly now change - it might now be different when the modem boots if the config file specifies an IP address that is something other than the default, so change your machine’s address accordingly if necessary
   •   Wait an age until the modem config is loaded (v. approx 4 mins (!) for me)
Then config loading has completed.


I use this procedure to flash all of my B10A modems with kitizen johnson firmware. I have very many. I added the note about loading saved config files because the web UI code that handles this procedure seems to be very strange indeed, or let’s just be less generous and say that it’s simply ‘bugfull’.
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Weaver

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Re: ZyXEL VMG1312-B10A - Flashing Firmware Problem
« Reply #7 on: February 09, 2023, 10:59:44 AM »

Note that the B10D is an inferior device compared with the B10A, at least for ADSL2. For FTTC/VDSL2 there may not be any noticeable difference in performance.
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burakkucat

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Re: ZyXEL VMG1312-B10A - Flashing Firmware Problem
« Reply #8 on: February 09, 2023, 04:57:00 PM »

Is there a place where I can find the full list of firmwares in order to upgrade one at a time?

I have 11 firmware images for the VMG1312-B10A stored away, safely.

They are --
  • VMG1312-B10A_V1.00(AABQ.0)C0.zip
  • VMG1312-B10A_V1.00(AAJZ.3)C0.zip
  • VMG1312-B10A_V1.00(AAJZ.6)C1.zip
  • VMG1312-B10A_V1.00(AAJZ.7)C0.zip
  • VMG1312-B10A_V1.00(AAJZ.10)C0.zip
  • VMG1312-B10A_V1.00(AAJZ.11)C0.zip
  • VMG1312-B10A_V1.00(AAJZ.12)C0.zip
  • VMG1312-B10A_V1.00(AAJZ.13)C0.zip
  • VMG1312-B10A_V1.00(AAJZ.14)C0.zip
  • VMG1312-B10A_V1.00(AAJZ.16)C0.zip
  • VMG1312-B10A_V1.00(AAJZ.17)C0.zip
If you would please confirm that you do, indeed, have a VMG1312-B10A (and not a VMG1312-B10D) then I could make the above images available for you to download.
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ferokia

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Re: ZyXEL VMG1312-B10A - Flashing Firmware Problem
« Reply #9 on: February 09, 2023, 06:11:09 PM »

Quote
Do you definitely have a VMG1312-B10A and not a VMD1312-B10D as they are totally different devices?
If is a B10A then perhaps it was an ISP version?

It is a VMG1312-B10A. It says so on the sticker at the back and in the web interface.

Quote
It might just be worth trying the ‘post-bad flash’ emergency recovery procedure, which is as follows:

I tried to flash the latest official image and I got the error "The selected file contains an illegal image".
I used 1.00(AAJZ.17)C0.bin, SHA256: 7c2631e4e0994fda902c9e499948f328b2cc1c97918a69ee07b282201c074171

The device came from the ISP. There are no visual branding images on the web interface.
When we say branded, do we mean that it is also locked to an ISP? And does not accept other firmware?

Quote
If you would please confirm that you do, indeed, have a VMG1312-B10A (and not a VMG1312-B10D) then I could make the above images available for you to download.

It is a B10A. If a device is branded, does that mean that it does not accept generic firmware?
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j0hn

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Re: ZyXEL VMG1312-B10A - Flashing Firmware Problem
« Reply #10 on: February 09, 2023, 08:21:02 PM »

It is a B10A. If a device is branded, does that mean that it does not accept generic firmware?

It can mean that, yes.
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ferokia

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Re: ZyXEL VMG1312-B10A - Flashing Firmware Problem
« Reply #11 on: February 09, 2023, 09:17:16 PM »

Is the serial port those pins marked as J1? Near one of the two big black capacitors.

https://www.netcheif.com/Reviews/VMG1312/PIC/board.JPG
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burakkucat

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Re: ZyXEL VMG1312-B10A - Flashing Firmware Problem
« Reply #12 on: February 09, 2023, 10:26:25 PM »

Is the serial port those pins marked as J1? Near one of the two big black capacitors.

Yes. Referring to that image orientation the pins, from top to bottom, are:
  • (No. 5) Gnd
  • (No pin)
  • (No. 3) Rx
  • (No. 2) Tx
  • (No. 1) Vcc
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