MG4 Software Update Thread

Hello friends,

I don't fully comprehend most of the posts here but I love seeing the enthusiasm on display. I do have a question though that those who understand the software better might be able to help me with.

Hi (speedometer accuracy)

Has anyone had the car tell you you're going faster than you are? I have been past the flashing lights that tell you your speed when passing them. Three of them all said I'm going 23 mph, but whinny car is telling me I'm doing 28. Has anyone got anything to say? What I can do about this?
www.mgevs.com www.mgevs.com

In the above thread both SE and Trophy owners report that their speedo appears to be spot on. However, SE and Trophy run different wheels and more importantly different overall diameter sized wheels. Is it possible that the software for each edition is calibrated differently? Would installing the Trophy software on an SE throw out the speedometer a bit, with the software assuming the car has different wheels?

I know the difference isn't massive, and just about within normal margins when buying different rims/tyres, but I'm just surprised both cars appear to show speed very accurately. Especially towards 60 mph the difference should be more discernible. If the software is the same, the Trophy should be underreading a little bit, but I find it doesn't.

1735088940809.png


Looking forward to reading your thoughts on this.
 
ReintjeWA said:
Hello friends,

I don't fully comprehend most of the posts here but I love seeing the enthusiasm on display. I do have a question though that those who understand the software better might be able to help me with.

Hi (speedometer accuracy)

Has anyone had the car tell you you're going faster than you are? I have been past the flashing lights that tell you your speed when passing them. Three of them all said I'm going 23 mph, but whinny car is telling me I'm doing 28. Has anyone got anything to say? What I can do about this?
www.mgevs.com www.mgevs.com

In the above thread both SE and Trophy owners report that their speedo appears to be spot on. However, SE and Trophy run different wheels and more importantly different overall diameter sized wheels. Is it possible that the software for each edition is calibrated differently? Would installing the Trophy software on an SE throw out the speedometer a bit, with the software assuming the car has different wheels?

I know the difference isn't massive, and just about within normal margins when buying different rims/tyres, but I'm just surprised both cars appear to show speed very accurately. Especially towards 60 mph the difference should be more discernible. If the software is the same, the Trophy should be underreading a little bit, but I find it doesn't.

View attachment 33439

Looking forward to reading your thoughts on this.
Click to expand...
Yes I would assume you'd be correct and putting other versions than the official releases for each product always has a risk of something not working as intended
 
ReintjeWA said:
Is it possible that the software for each edition is calibrated differently?
Click to expand...
Yes, I believe that the various models get different software, and in some cases different module firmware. Though something like speedometer calibration could be settings data (I forget the correct term: parameters maybe?). It's also possible that the speedometer gets calibrated against GPS speed. But I imagine that they still need a roughly correct scale factor from either software or parameter data to start with.
ReintjeWA said:
Would installing the Trophy software on an SE throw out the speedometer a bit, with the software assuming the car has different wheels?
Click to expand...
It depends on how they've implemented it, sorry.
 
the happy bunny said:
FICM updates modify the entertainment system’s operating system but do not affect other ECUs, which remain unchanged.
Click to expand...
Right, but other ECU firmwares, or their parameter data, might vary from model to model, and so wrong software or firmware could possibly cause a speedometer inaccuracy. Granted, FICM (infotainment) software probably doesn't have anything to do with the speed readout. There is usually an instrumentation ECU, I think.

Unless as discussed above, the calibration gets fixed on the fly from GPS speed measurements.
 
I tried it again this afternoon, same error message as yesterday. Will the email to MG or saic help? I'm still hoping it's a server problem and that it will work again tomorrow or the day after.
 
thei said:
I tried it again this afternoon, same error message as yesterday. Will the email to MG or saic help? I'm still hoping it's a server problem and that it will work again tomorrow or the day after.
Click to expand...
Yea I did mention to them but this was 4pm yesterday so I don't think we'll get a reply until gone 30th
 
No luck reactivating the system today.

The long story:
I installed R63 a couple of days ago and everything seemed to work. Noticed yesterday that weather and the "User"-App didnt work (Error 404).
Reinstalled R59 because that one was working fine for the last weeks.
Upon restart the Start-Page with the widgets was completely empty.
Did a factory reset and the system now looks normal.
Weather and User-App however still not working.
Reseted the activation info. Trying to reactivate gives the 'TSP doesnt have car info'-Error. However, i too think that it is a server-side problem.
Now i am stuck with no navigation, no weather, no User-app.
Internet is working fine, because Amazon Music is working and the iSmart Remote Control does work too.
 
I tried activating it again today, it didn't work. But MG seems to be working on it! First I always got an error message saying "Security bla bla bla..." almost immediately! A few hours later it took a while and then I got the message "Abnormal connection, please check connection"...
 
I do the SNAKP23 Update only with USB and all Looks for me Fine.
But i get the R63 for two week from the Dealer but the Car was still on SNAKP21.
After the tbox Update I have still Connection via the App to the Car and nothing Shows broken without the SIPS Update.
 
owalt said:
I do the SNAKP23 Update only with USB and all Looks for me Fine.
But i get the R63 for two week from the Dealer but the Car was still on SNAKP21.
After the tbox Update I have still Connection via the App to the Car and nothing Shows broken without the SIPS Update.
Click to expand...
Good morning. where did you get the update file?
 

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