WIMorrison

Place the loco on the programming track and read CV1, this will give you the decoder address. To get the manufacturer read the value in CV8, you can use the NMRA ID for the name of the manufacturer

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Firstly, why are you using 28 Speed Steps? You should be using 126 these days. Secondly, if you use a Zimo decoder then you can set the voltage provided to the motor independently of the setting in CV5 which allows you to tame excessively fast locos but still get a decent range of speed steps - especially using 126 speed steps ;)

another interpretation of CV123 is that it is a Boolean value i.e. on or off. It may be that 32 switches the dimming on, and that 0 may switch the dimming off. However altering the brightness will not overcome the effect of the camera frame rate. You can see a similar effect with single LED lights in many cars, or around the house. Where a matrix of LEDs is used it may be less apparent. Why do LEDs flicker?

You can try adjusting this value CV123 upwards from 32. The max is probably 254, and that will be very bright.

LEDs flicker when 'filmed' due to the strobing effect caused by frequency of the frame rate on the camera and the frequency of the LEDs. The Mk1 human eye cannot see it because it happens too fast and our eyes have a persistence of vision that cameras do not. It is extremely common, the better cameras have techniques to get around it.

That seems pretty definitive to me, and would be inline with Hornby's previous history of developing something that sort of meets the standards (XpressNet in this case) but when it doesn't they are not really that worried because they want to operate in a walled garden, which for clarity means that they want everyone to remain completely within the Hornby environment and interoperability outside the Hornby walled garden is not something that they will invest time, money or interest in.

CV8=4 followed by CV8=6 will change the the value of F03 to F06 to normal operation and CV8=3 followed by CV8=5 will change them back to logic-level.

Only other option is to speak to Roco support and tell then everything that you have tried. I have found them extremely helpful, though sometimes they can be a bit slow in responding.

If your locos lose contact on curves or turnouts then you have a problem. The reason the contacts are springy is to allow for the side to side movement and you should never lose connectivity between the wheel and the contact.

that is why I said in my earlier post to set CV3 and 4 to zero …

You can check pickups on the bench using DCC in exactly the same way that you use DC - no difference, but you may want to make CV3 and CV = 0 before you start to ensure that the locos run without the extreme inertia characteristics that are often used. I assume the second DCC statement means DC? In which case you need to read CV 29 and add 4 to the value that you read. You can check the setting by using this link. (if the value already in CV29 shows that DC running is already enabled then you would appear to have an issue. DCC CV29 Calculator (2mm.org.uk)

What is it you need to know - I don’t see any questions to answer 😞

You do not use the YDF7001 Wi-Fi, you use a wire from the YD7001 to the router and then to the rest of your network. The YD7001 only works as an Access point for phones, multimice, etc. If you want to use Wi-Fi to connect the YD7001 then you need to bridge between the Wi-Fi routers. This is what Karst and I have described.

What are you ‘bumping’ - I have you the same information that Karst sent you.