I bought five of the white Samsung models from the Ebay link. Two work perfectly every single time, flawless. Three will cause the phone to activate the screen and audio signalling the phone is charging. But, it does not charge and there are two LED's in the charger base that alternately flash what looks to me like a blue then a yellow color. The two that work fine light up in a constant blue color and never light up any yellow color. I have tried different actual charging units that connect the base to the wall socket. All of these work fine when connected to the phone with out the wireless Samsung unit in between. I have also tried different cables from the charger at the wall to the Samsung unit. Position on the pad does not matter. When you place the phone on the right area, the phone activates signalling you are charging, but it really does not. For instance, after three hours on the pad, I lost battery charge and the LED's never quick blinking. I have to tell you that the Ebay seller gets no blame. They answer questions and try to help. They are very open to try and make the customer happy. I give them all the credit as an Ebay seller. Absolutely no blame to them and I have nothing bad, at all, to say about them. I would give them an A+++ as a seller and ease to deal with. I have the Diztronic Matte Black Flexible TPU case. Taking off doesn't matter. I am not sure what the fix is, though. I am thinking of buying the Incipio Ghost 100 chargers as no one seems to have found a problem with them and the Droid MAXX.