Thank you for writing to us!
As we understand that the touch screen and the system goes blank when you connect the charger but does the tablet work fine when the charger is not connected to the system. Have you tried to connect a different charge to check if that helps.
If you are able to back up the data on the system kindly so as this could either be a hardware or a software failure.
Once the data is backup on the system then you can reset the system to factory defaults and check if that help .
Kindly private message the service tag and email address.
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