This happened unexpectedly. After happily receiving my tablet, I'ts charger malfunctioned just as I put it on the socket. Thank God all the other electrical appliances were intact. You should be very careful with Chinese products these days.

Supplier refunded money for the sum of the charger which was a nice act from them. But it came with a delay which was not good.

https://www.aliexpress.com/item/HOT-NEW-Aoson-M751S-BS-7-inch-kids-Tablet-Quad-Core-Wifi-512MB-RAM-8

Please ensure that you're well aware of these cheap items and possible defects they might have. Sometimes we just can't know untill try some of them out. Some of this appears to be a more of a luck game.