Neil-371927 Posted January 19 Share Posted January 19 Hi all I'm having trouble linking up my HMDCC with my Engine. I've attached a photo of the products that I'm using and the reset passcode that I'm receiving when trying to link the device.Does anybody know what I need to do.Any help is gratefully receivedthanksNeil Link to comment Share on other sites More sharing options...
LTSR_NSE Posted January 19 Share Posted January 19 If you are receiving that reset message when trying to link decoder & phone/tablet for the first time, the solution is to switch off power to track & switch off phone/tablet, (wait approx 30secs) then switch everything back on again. Decoder should then link correctly with app. Link to comment Share on other sites More sharing options...
Neil-371927 Posted January 19 Author Share Posted January 19 Thanks for your swift answer .Hmmmmm... I just tried this but my Device still comes up as resettable device.see pic Link to comment Share on other sites More sharing options...
Daedalus Posted January 19 Share Posted January 19 Try a4c13800609c Link to comment Share on other sites More sharing options...
Neil-371927 Posted January 19 Author Share Posted January 19 wow, that worked, where did you get that from ?thanksNeil Link to comment Share on other sites More sharing options...
Neil-371927 Posted January 19 Author Share Posted January 19 Hmmmmm Linking Divice is taking forever now, 5 to 10 mins and still linking (spinning)Is this usual ?thanksNeil Link to comment Share on other sites More sharing options...
Daedalus Posted January 19 Share Posted January 19 The reset code is the full Bluetooth LE address. You should be able to scan for it with any BLE device.The decoder address is in the form a4c138xxyyyywherea4c138 is allocated to the manufacturer.xx appears to be 00 in all sold devices so far ( the exception being samples supplied to the testers)yyyy are the last 4 characters in the device name.So only xx being 00 was a likely guess. Link to comment Share on other sites More sharing options...
Neil-371927 Posted January 19 Author Share Posted January 19 Oh I see :-) makes sense.But I have the Linking Device wheel of doom spinning around for the last 20 mins now so I'm still little stuck :-(Anybody know why ?Neil Link to comment Share on other sites More sharing options...
Neil-371927 Posted January 19 Author Share Posted January 19 After resetting my Passcode, which seemed to work, I'm trying to link to my device.See pic...This wheel has been turning/ searching for 30 mins or so.I'm guessing this isn't correct.Has anybody else experienced this ? Link to comment Share on other sites More sharing options...
Daedalus Posted January 19 Share Posted January 19 Link to comment Share on other sites More sharing options...
ColinB Posted January 19 Share Posted January 19 Mine did that when it got confused. If you use a bluetooth app it will scan all the devices and give you the address remove the colons ( I think it used colons as separators) and that is the address. With mine the HM7000 App had got itself in a mess. In the end deleted the App and reloaded it. From my experience they needs to be a ton more work done on the error handling for the HM7000 app. I got the same as you when I tried updating the software in a HM7000 and I did nothing different to all the other times I update a device. In the end deleted the App and reloaded it and it sorted itself out. Link to comment Share on other sites More sharing options...
Daedalus Posted January 19 Share Posted January 19 It is a 48 bit address in hexadecimai and the ":" breaks it into 6 bytes for readability, "-" is also used as the seperator. Link to comment Share on other sites More sharing options...
Neil-371927 Posted January 19 Author Share Posted January 19 Ok, Thanks for the reset code, Hornby also kindly sent it to me.And re the not linking problem... Well, I decided to update the software on my iPhone and that sorted that problem out ie the the app linked the device very quickly.So maybe the whole thing was about the old software on my iPhone, the two systems not being able to communicate fully with each other ? So that's a lesson learnt there.Thanks to everybody that helped on this one,Neil Link to comment Share on other sites More sharing options...
Canada Chris Posted May 6 Share Posted May 6 I have had a similar problem. My mistake it now seems was that I used the wrong app to Link the loco decoder. I used HMDC app (for HM6000 series) rather than the HMDCC app for the HM7000 series. I have sent the request to HORNBY for the reset code but may have to wait 7 working days for a reply. Sadly living in a different time zone (Alberta Canada -7hrs) I can’t really call them. I tried using the method detailed above but sadly it was not the correct passcode. I tried a4c138004A3F and also a4c138004a3f. Any other ideas? Link to comment Share on other sites More sharing options...
Canada Chris Posted May 6 Share Posted May 6 Update - after searching on other posts the passcode was Reset1234 It worked!!!! 1 Link to comment Share on other sites More sharing options...
Canada Chris Posted May 6 Share Posted May 6 ……. and then afterwards in the middle of the UK night at 3am, (wow just wow) I received this from HORNBY: a4c138014a3f seems they have moved on from 00 to 01 2 Link to comment Share on other sites More sharing options...
New Model Railway Posted September 2 Share Posted September 2 On 06/05/2024 at 03:27, Canada Chris said: ……. and then afterwards in the middle of the UK night at 3am, (wow just wow) I received this from HORNBY: a4c138014a3f seems they have moved on from 00 to 01 Maybe the 00 and 01 are region codes. 00 UK, 01 NAmerica or Rest of World perhaps. Just guessing here. With regards the original suggestion for a fix, the 'switch it all off' solution worked for me. This included a full reboot of the phone, not just going into sleep mode. Maybe android needs this kind of forced app update. Link to comment Share on other sites More sharing options...
96RAF Posted September 2 Share Posted September 2 8 minutes ago, New Model Railway said: Maybe the 00 and 01 are region codes. 00 UK, 01 NAmerica or Rest of World perhaps. Just guessing here. Not so, they are simply a sequential number incremented as the 13800xxxx block ran out. That should give you some idea of how many decoders have been produced. Link to comment Share on other sites More sharing options...
New Model Railway Posted September 2 Share Posted September 2 6 minutes ago, 96RAF said: Not so, they are simply a sequential number incremented as the 13800xxxx block ran out. That should give you some idea of how many decoders have been produced. I literally just found this out. I got sent a Reset Passcode and it had 01 in it. I am in the UK so that disproves my theory. Link to comment Share on other sites More sharing options...
ColinB Posted September 2 Share Posted September 2 As has been stated in other threads you can get it by using a free Bluetooth scan tool. Why Hornby persists with this feature amazes me. If a Buetooth scan tool can find it then the App itself can do the same. When I wanted the Reset code on a HM7000 I bought 6 months ago that is how I did it. Link to comment Share on other sites More sharing options...
SteveM6 Posted September 2 Share Posted September 2 Notwithstanding the emails, the app displays the reset code and, as I have said many, many times before, it's easy to work out the code from the address the app displays when you first try to link the decoder - a4c13800 or 13801 plus the last four digits of the address. No need for a third party scanner at any stage. 1 Link to comment Share on other sites More sharing options...
ColinB Posted September 2 Share Posted September 2 16 minutes ago, SteveM6 said: Notwithstanding the emails, the app displays the reset code and, as I have said many, many times before, it's easy to work out the code from the address the app displays when you first try to link the decoder - a4c13800 or 13801 plus the last four digits of the address. No need for a third party scanner at any stage. Generally when you get the Reset request you cannot link the decoder. Either way does it matter if you use an external tool, most smart devices are multitasking so there isn't an issue. Link to comment Share on other sites More sharing options...
LTSR_NSE Posted September 2 Share Posted September 2 @ColinB - the reset code is an attempt at preventing devices ‘stealing’ control from an already linked & operating device. Whilst the effectiveness of such a security measure can be debated - if the app actually displayed the code it would negate its purpose! 🤦♂️ Link to comment Share on other sites More sharing options...
ColinB Posted September 2 Share Posted September 2 (edited) 32 minutes ago, LTSR_NSE said: @ColinB - the reset code is an attempt at preventing devices ‘stealing’ control from an already linked & operating device. Whilst the effectiveness of such a security measure can be debated - if the app actually displayed the code it would negate its purpose! 🤦♂️ It doesn't have to, in the case of a reset operation all you do is pull up Text Box with text "Your device needs resetting, would you like to do this?" With two buttons "Yes/No". Nobody sees the reset code it is all handled by the App. If you press "Yes" then the App would run a routine with the Reset code it has found. To be honest, we are talking model railways it is not like it is safety critical software. If you want added security you do it via the App not by passing around Reset codes which people will probably write down, which blows away any security you thought you had. Edited September 2 by ColinB Link to comment Share on other sites More sharing options...
LTSR_NSE Posted September 2 Share Posted September 2 (edited) @ColinB - I’m not referring to people reading/copying the code over your shoulder! I’m saying that it’s intended to prevent another user resetting & taking control of a decoder in an exhibition or club environment! That is why I said its effectiveness is debatable - but why it isn’t displayed in the app (at the point of reset). Edited September 2 by LTSR_NSE Link to comment Share on other sites More sharing options...
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