My son's tablet has stopped working

Hi Everyone, Today my son unwrapped his cheap android tablet and was playing away happily until the tablet needed recharging, so we hooked it up to the dc charger and waited, my daughter has one and I noticed no battery symbol was showing just a black screen, I have searched on here and various sites for answers and done the 60 sec hold ppower button, tried a reset, had it on charge for hours now and still nothing, no light, and i tried holding down

the volume whilst holding the power button, it was packed away for a while before he got it and i am wondering if the battery was too low already to hold any charge now?


WonderPad - Android 4.0 Tablet with 7 Inch Capacitive Screen (4GB,WiFi, 1GHz, 3G, Camera)

It's from China and now I am regretting buying it, is there anything I can do that I haven't tried alread, also i have just hooked up to my laptop via the usb and nothing has appeared on my pc in devices!!?

Any help would be appreciated

 

Thanks Lunatic, I will try that and get back to you with the outcome! fingers crossed!

 

The charger for my daughters is working ok, same voltage etc, same pin or jack but slightly different tablet, tried it in my sons just nothing, and wiggled it gently, nothing! I am trying to get a driver installed on my latop now for a Usb charger and see if that works, not really that familiar with android and pc communicating so will see and get back to you if to no avail, TY