Visitor

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3 Messages

Tuesday, September 2nd, 2025

Coda56 Firmware Update

I bought a Coda56 last year and I need the firmware updated so that I can access the GUI, and access my full plan speeds

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Official Employee

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2K Messages

11 days ago

Hello, @jnc24! Thanks for reaching out to us over the community forum with your firmware update questions. You've come to a great place for support! Our Digital Care Team is awesome because we'll always provide you with the latest information available, helping in any way we can :)

 

In the case you've brought up, it is not possible for you to manually push a firmware update to your CODA56 modem. Here's a breakdown of how it works and what you can expect:

 

- Firmware is controlled by Xfinity: According to DOCSIS standards, we are responsible for distributing and updating the firmware on your cable modem. This is to ensure compatibility with our network and to maintain a consistent service.

- Automatic updates: Firmware updates are automatically pushed from our network to your modem when a new version is available, has been tested, and is approved for distribution. Our representatives do not have the ability to manually push a specific firmware update to your device.

- GUI Access: Access to the CODA56's GUI (Graphical User Interface) requires a specific firmware version (7.3.5.0.1b2 or higher). If your modem has not been updated to this version, you will not be able to access the GUI, even if you follow the correct steps.

- 2.5 Gbps Speeds: The CODA56 modem is designed to support speeds up to 2.5 Gbps and is on our approved modem list. However, to fully utilize these speeds, you must have an Xfinity plan that supports them and the correct firmware on your modem.

- What you can do: While you cannot force the update, you can try to power-cycle/restart your modem by unplugging it for a minute. This sometimes helps it pull a newer firmware version if one is queued up on our server.

 

In short, while the features you want are tied to a firmware update, you are reliant on us to push that update to your modem. There is no way for you, or a customer service representative, to initiate the update manually. I hope this helps!

 

Please also note that sending unsolicited private messages to myself or any other user is a direct violation of our Forums guidelines. You must first create your own public post requesting assistance, and once a Comcast verified employee responds and asks for a private message to be sent, you can then proceed with doing so. This is just a heads up for future reference, and I look forward to assisting you further should you have more questions :)

Visitor

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3 Messages

Ok!

I did try a powercycle and I don't think that pulled the firmware to update it.

Visitor

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3 Messages

OK!

I did try a powercycle and I don't think that pulled the firmware update.

Official Employee

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2K Messages

I'm sorry, @jnc24. Thanks for trying! Sounds like this update will just take some time, then. You're welcome, of course, to ask any other questions you have. We remain here to support you the best we can :)

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Visitor

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2 Messages

I am a Comcast/Xfinity customer paying for 500 Mbps service using my own FCC-certified modem (Arris S33v2), which is on Comcast’s approved device list. Despite clean DOCSIS 3.1 signal levels and full channel bonding, my modem is capped at ~25 Mbps because Comcast refuses to push the required firmware update.

My modem is running firmware TB01.03.001.11 from May 2022. Comcast’s network requires newer firmware (1.2.x / 1.3.x) for proper provisioning, but Comcast has not provided it. Their agents confirmed I am provisioned for 500 Mbps in the billing system, yet the CMTS service flow never updates due to the outdated firmware.

When I asked about updates, Comcast stated they do not update firmware on BYOD devices and instead recommended I rent their modem. This creates an unfair situation: while the FCC requires ISPs to allow customers to use compatible equipment, Comcast is effectively discouraging BYOD by withholding necessary updates, making customer-owned modems unreliable.

This practice forces customers into paying monthly rental fees to receive the speeds they already pay for, even though their own modems are certified and approved. I request the FCC investigate Comcast’s handling of BYOD modem firmware, as this appears to undermine the FCC’s intent to protect consumer choice in compatible equipment.

If you’re using your own modem with Xfinity and they’re refusing to push firmware updates or blaming your BYOD device for speed caps, [Edited: "Solicitation"] → Choose Internet Service → “Billing, Service, or Speed.”
The FCC requires ISPs to allow customer-owned compatible devices (47 CFR §76.1206). Comcast must answer these complaints, [Edited: "Solicitation"].

(edited)

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