Panasonic Lumix S5IIX

Panasonic Lumix S5IIX is a full-frame digital single-lens mirrorless camera (DSLM) sold by Panasonic under it's Lumix S line of cameras, targeting professional photographers/videographers. The S5IIX is virtually identical in capability to the earlier released Lumix S5II with identical 24MP CMOS sensor, including the following extra features:

• Raw video output over HDMI
• Video recording to external SSD over USB-C
• All-Intra video recording modes
• Internal & external ProRes capture modes
• Wired & Wireless IP Streaming

Panasonic Lumix S5IIX/DC-S5IIX

Basic Information
Release Year	2023
Product Type	Full-frame digital single-lens mirrorless camera (DSLM)
In Production	Yes
Official Website	https://shop.panasonic.com/products/s5m2x-full-frame-mirrorless-camera-body

Consumer impact summary

Overview of concerns that arise from the conduct towards users of the product (if applicable):

• User Freedom
• User Privacy
• Business Model
• Market Control

---

Add your text below this box. Once this section is complete, delete this box by clicking on it and pressing backspace.

Incidents

This is a list of all consumer protection incidents related to this product. Any incidents not mentioned here can be found in the Panasonic Lumix S5IIX category.

Replace the placeholder text in the sections below with the incidents that affect this product and a short summary. Also replace the link so it point to the right product line or company article.

---

Add your text below this box. Once this section is complete, delete this box by clicking on it and pressing backspace.

Removal of product features in Ver 2.2 firmware (2025/01/23)

In the latest release of firmware for the Lumix S5IIX, Panasonic restricted and or removed the following features (region dependant) citing "security enhancements":

<blockquote>

8. Feature changes due to security enhancements

- When directly connecting the camera and smartphone via Wi-Fi, the connection has been changed to always require password authentication. (The [Wi-Fi Password] menu has been removed.)

- The [TKIP] encryption method is no longer supported when connecting to Wi-Fi via an access point.

- The [No Encryption] option in network authentication is no longer supported when connecting to Wi-Fi via an access point.

- Wired LAN streaming feature (RTP/RTSP) has been removed.

- The image transfer feature to PC via Wi-Fi has been removed. (Only European models)

- The streaming feature via RTMP has been removed. (Only European models)

</blockquote>

At the time of writing (2025/04/19) there has been no statement from Panasonic explaining what security concerns prompted removal of RTP/RTSP over wired LAN (all models), and RTMP streaming, including image transfer over wifi for European models of the S5IIX. There appears to be no plans to re-introduce above features in future firmware updates.

Owners of the S5IIX who have updated to Ver 2.2 without knowing of the feature removals, who wish to continue to use the product features they paid for cannot do so as like many companies, Panasonic prevents firmware downgrades in the Lumix line of cameras in an attempt to prevent security regressions in their product's software, at this time their are no known workarounds once a camera has been upgraded to Ver 2.2 and beyond.

As of writing (2025/04/19) Panasonic Still advertises "Wired IP streaming" on both their American and Canadian web-stores, likely leading to customer confusion/frustration should the product be purchased with the expectation of being able to stream video over a wired LAN connection

See also

Link to relevant theme articles or products with similar incidents.

---

Add your text below this box. Once this section is complete, delete this box by clicking on it and pressing backspace.