Connect Systems CS800D PLUS
firmware v40.55
Connect Systems · Released Aug 15, 2023 · First seen Sep 12, 2026
Source:
connectsystems.com
v40.55 is not the latest firmware for the Connect Systems CS800D PLUS: the current version is v40.58 (October 27, 2025). Go to v40.58
What's in this update
This firmware allows for the setting of Tx Preamble when sending SMS messages. As of this date, it has not been tested.
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