Hi everyone! I hope this is the most appropriate section to post this in.
I have a new Prince of Wales loco which is quite nice except initially, it did not work on my layout.
Bluetooth scanning did not locate it and RailMaster would not recognise it. I checked power supply on pins 21 and 22 (strange for a 21 pin decoder but) and all ok at 18v ac, so emailed Hornby tech support thinking the decoder must be faulty.
However, trying again the next day, lo and behold Bluetooth picked it up when scanned. All worked fine on Bluetooth but not on Railmaster. Yes CV12 was set to “0” via Bluetooth. I tried everything I could think of, reloaded RM, reset laptop, reloaded the HM7k all to no avail. I updated cv1 to 024 via RM but could not get it to read back. Oddly it worked for a time on RM but when I exited the loco setup it stopped. I persevered for a time during which I could have torn my hair out (but don’t have much) and gave up.
As the eternal optimist I tried again this morning, and once again quite magically, it worked on both RM and Bluetooth, I could hardly believe it. Unfortunately, when I attempted to read CV’s on RM it still does not work. As the Bluetooth app indicates the loco address has changed to 024, it appears that I can write to it, but reading CV’s is still not possible on RM.
I can read other loco CV’s and have used HM7k decoders in several locos with no problems – all still work ok.
It appears, in my humble opinion, that there must be a fault in the decoder, so I await tech support, unless I have overlooked something which I am sure will be pointed out.