I also have an issue with charging MG4 on home charger. I'm new to having and using electric car and charging, but I think this exact issue with charging is not my fault.
Here are some bulletpoints of what is happening and what I've tried:
- The screen in car shows soemething like "check the cable" in the charging section in the infotaiment system.
- I've had the car for about 20 days, and have charged 3 times at home before it stopped working.
- I used the "Stop charging" from the app to stop the 3rd time I charged (last time it worked).
- I have turned off scheduled charging.
- I tried a public rapid charger, and that worked (when using both charger ports on the car)
- I've contacted the MG dealer, and they had a look at it. They found something like a "charge lock error" or something and deleted it, and told me to contact them again if the issue re-occurred, which it did immediately. It don't seem they understood the issue, and that it was a new problem for them.
So now I'm looking for a fix online since the MG dealer didn't fix it, however I will contact them again if I don't find the solution from someone who knows more about this exact issue.
I will also investigate if it could be my home-charger being the problem, it did work without problems 3 times in a row, but it is giving 2,3 kW which is quite low and I'm not sure if that could be a problem, that for some reason only happened on the fourth charging attempt.