Centro Business 2.0 firmware files (ADB ST-6840), TFTP, CFE

adiknoth

Hi!

I've found an ADB ST-6840 (a.k.a. "Centro Business 2.0") in the trash, currently running firmware version 9.04.06.

Ultimately, I'm trying to bootstrap OpenWRT for the platform, but would likely need TFTP to experiment with kernels and ramdisks to avoid bricking the device.

I have access to the CFE via a serial console, unfortunately, TFTP doesn't seem to work, always errors out with "-1" without even sending a request to the network. Is there some magic setting that I'm overlooking? (for instance a specific remote host that must match)

Does anyone have firmware files (both newer or older, or even the same) that I could try? I cannot directly upgrade to the latest one provided on the homepage, because I think I need an intermediate version as per another thread in this forum.

In case it matters: all of this happens in the void, disconnected from the internet, so no way of auto-upgrading.

TIA

Black Mamba

@adiknoth

An overview of the ports on the Centro Business 2.0 and instructions on setting up your router.

Centro Business 2.0 - Help | Swisscom

Updating firmware for your Swisscom devices
The programs/software that provide the basic functions on electronic devices are referred to as firmware. Swisscom regularly updates the firmware of its own devices to fix bugs and implement new functions. Updates are performed automatically, usually at night.

Updating firmware for Swisscom devices – Help | Swisscom
This page lists the firmware versions as well as the enhancements and functions included (release notes/version notes).

Current firmware (Version 13.06.45)
The firmware of your WLAN-Box will be updated automatically as soon as a new version is available. If you do not want to wait for the automatic update, you can download and install firmware manually.

adiknoth

Unfortunately, the link you've provided only has the 13.06.45 firmware available, however, as pointed out in my initial post, a direct upgrade from 9.04.06 to 13.06.45 is not possible, the router rejects this firmware file. I believe I need an intermediate 9.4 to upgrade to 10.x, and from there to 13.x unless I also need 11.x and 12.x in between.

Hence the question for an archive of previous firmwares.

Note that an automatic update is not possible, as the device is not (and will not be) connected to the Internet as mentioned before.

bitracer

Why bother?