I buy this charger to replace the original charger that I had lost. It took me a while to understand that the problem was hard charger, when actually this charger was plugged in, the touch of my tablet did anything, and was unusable, I thought the problem was the tablet but by finding the original charger, everything is reset to function properly during the charge, the problem is well connected to the charger. It remains to find and understand the cause and effect.