Connect Systems CS800D PLUS
firmware v40.54
Connect Systems · Released Apr 21, 2023 · First seen Sep 12, 2026
Source:
connectsystems.com
v40.54 is not the latest firmware for the Connect Systems CS800D PLUS: the current version is v40.58 (October 27, 2025). Go to v40.58
In short — summary by updatemystuff.com
CPS fixes crash with large contact counts; provides workaround for code plug read/write issues
- CPS prevents crash when contact count exceeds certain size
- Running RCDB firmware first resolves code plug read/write issues
- Running RCDB erases voice prompts, requiring manual reload if desired
Written from Connect Systems's release notes, which are printed in full below.
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What's in this update
There are a few radios that are having problems reading or writing their code plug.
Usually changing the computer solves the problem.
If that does not work or you want to use a specific computer, you need to first run the RCDB version of the firmware and then update to MS40.54.
Running the RCDB version erases the voice prompts so they will have to be reloaded if you want voice prompts.
This new CPS solves a problem where if the number of contacts is too large then the program crashed.
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