Completely Dead Ipad Air 2
so I have an Ipad Air 2 wifi that suddenly stopped working. The device didn't fall or get damaged with water. The only problem it had was not charging when using other cables than the one that came with it(I have 2 original lightning cabels and a hdmi adapter, I have no problem using them on my IPhone 6 however with the Ipad they do their connecting function but the battery doesn't get charged). So the device does not show any reaction to charging and doesn't connect to any Pc/Mac. It also refuse the reset. The only thing that happens is the right side gets warm when I connect it with the charger. Apple's employees were not helpful and only suggested to replace the Ipad with a new one for 340€.
My question is did this problem happen to any one before? What can be the cause and is there any solution.