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Author Topic: Zyxel XMG3927-B50A  (Read 13300 times)

meritez

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Re: Zyxel XMG3927-B50A
« Reply #60 on: March 08, 2021, 02:56:17 PM »

Sorry for dragging up an old thread, but as I have just won one of these on Ebay, has anyone requested the source code for the XMG3927-B50A: https://www.zyxel.com/form/gpl_oss_software_notice.shtml
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meritez

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Re: Zyxel XMG3927-B50A
« Reply #61 on: March 09, 2021, 11:24:46 AM »

Arrived,

made request for sourcecode, it's in a KCOM box  :lol:
model number XMG3927-B50A-GB01V1F

Anyone want an unboxing or a dismantling, as it cost me 30

Well this seems a rabbit hole, there's a remote code execution vulnerability for a firmware version 5 revisions higher than what is on the zyxel ftp: https://www.zyxel.com/support/Zyxel-security-advisory-for-remote-code-execution-and-denial-of-service-vulnerabilities-of-CPE.shtml

« Last Edit: March 09, 2021, 01:24:58 PM by meritez »
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re0

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Re: Zyxel XMG3927-B50A
« Reply #62 on: March 15, 2021, 09:29:11 PM »

I have seen a few KCOM branded ones on eBay recently around the 30 mark. I was going to pick one up to help diagnose a fault but I just used the Openreach modem instead. Seems a good bargain anyway, even more so if you need a G.fast modem.

I have skimmed your other thread about the vulnerability and I think it is disappointing that the FTP server has not been updated with the latest firmware since I have been checking that every now and again for months, as that's where I would expect it to be. I have requested the firmware so hopefully I will get that very soon. Thanks for bringing that to my attention.
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SE

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Re: Zyxel XMG3927-B50A
« Reply #63 on: June 03, 2021, 06:20:26 PM »

Hi
Whats the chipset in this
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meritez

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Re: Zyxel XMG3927-B50A
« Reply #64 on: June 03, 2021, 06:32:29 PM »

Hi
Whats the chipset in this

Code: [Select]
BusyBox v1.20.1 (2018-10-12 12:32:49 CST) built-in shell (ash)
Enter 'help' for a list of built-in commands.

# cat /proc/cpuinfo
Processor       : ARMv7 Processor rev 1 (v7l)
processor       : 0
BogoMIPS        : 398.13

processor       : 1
BogoMIPS        : 398.13

Features        : swp half thumb fastmult edsp tls
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x4
CPU part        : 0xc09
CPU revision    : 1

Hardware        : BCM963138
Revision        : 0000
Serial          : 0000000000000000
#

It's a BCM963138 according to busybox
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j0hn

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Re: Zyxel XMG3927-B50A
« Reply #65 on: June 04, 2021, 12:33:13 PM »

« Last Edit: June 04, 2021, 12:35:44 PM by j0hn »
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smallal

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Re: Zyxel XMG3927-B50A
« Reply #66 on: August 09, 2021, 11:28:40 AM »

Finally: ftp://ftp.zyxel.com/XMG3927-B50A/firmware/ now has firmware v5.17 available
Note: Microsoft Edge doesn't support ftp sites so use IE11 or another browser to access
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Alex Atkin UK

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Re: Zyxel XMG3927-B50A
« Reply #67 on: August 09, 2021, 02:16:44 PM »

Finally: ftp://ftp.zyxel.com/XMG3927-B50A/firmware/ now has firmware v5.17 available
Note: Microsoft Edge doesn't support ftp sites so use IE11 or another browser to access

Most browsers have dropped ftp, its really annoying.
« Last Edit: August 09, 2021, 02:27:48 PM by Alex Atkin UK »
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adslmax

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Re: Zyxel XMG3927-B50A
« Reply #68 on: August 09, 2021, 02:24:51 PM »

The latest firmware directly from Zyxel are V517ABMT5C0 Here is the latest firmware:
https://www.dropbox.com/s/9i4m1bh5buxnuhc/V517ABMT5C0.zip?dl=1

Supported Platforms:
Zyxel XMG8825
B50A
Zyxel XMG3927
B50A
Zyxel VMG3927
B50A
Zyxel VMG3927
B60A
Zyxel VMG8825
B50A
Zyxel
VMG8825 B60A
« Last Edit: August 09, 2021, 02:27:43 PM by adslmax »
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meritez

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Re: Zyxel XMG3927-B50A
« Reply #69 on: August 09, 2021, 03:12:53 PM »

@adslmax thank you,

There's a newer version for the vmg8825: VMG8825-V517ABNY6C0.zip found here: https://eyenetworks.no/fw/
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adslmax

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Re: Zyxel XMG3927-B50A
« Reply #70 on: August 09, 2021, 03:47:49 PM »

@adslmax thank you,

There's a newer version for the vmg8825: VMG8825-V517ABNY6C0.zip found here: https://eyenetworks.no/fw/

Thanks but Zyzel has advised me not to use this version VMG8825-V517ABNY6C0.zip for my router Zyxel XMG3927-B50A as the latest firmware with stable (not beta) are V517ABMT5C0

The file u metion are for this router below:
Supported Platforms:
ZYXEL VMG
8825 B5 0B VMG 8825 B60B VMG 8825 B 5 0C
VMG 8825 B60C / AM3100 B0
« Last Edit: August 09, 2021, 03:52:37 PM by adslmax »
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meritez

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Re: Zyxel XMG3927-B50A
« Reply #71 on: August 09, 2021, 07:20:11 PM »

Oh okay, C0 releases are general release aka stable, betas end with the character b1, b2, b3 etc.
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smallal

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Re: Zyxel XMG3927-B50A
« Reply #72 on: August 18, 2021, 10:47:19 AM »

Looks like Zyxel may have tweaked the modem code slightly for G.Fast in the new firmware.
On my line everything on the stats is pretty much identical except ACTUAL INP.
The downstream remains the same (at 640 symbols) but upstream goes from 607 symbols with V5.13 to 676 symbols with V5.17
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meritez

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Re: Zyxel XMG3927-B50A
« Reply #73 on: August 18, 2021, 12:54:25 PM »

Looks like Zyxel may have tweaked the modem code slightly for G.Fast in the new firmware.
On my line everything on the stats is pretty much identical except ACTUAL INP.
The downstream remains the same (at 640 symbols) but upstream goes from 607 symbols with V5.13 to 676 symbols with V5.17

Tweaked for better or worse?
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smallal

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Re: Zyxel XMG3927-B50A
« Reply #74 on: August 18, 2021, 01:39:07 PM »

Tweaked for better or worse?
No idea, my line has always been stable & I get full capped speed, perhaps someone who doesn't get the max. speed has noticed a difference?
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