inputs.text: power block not work cables - bought three itehem iphone 3gs 16gb spares use work plugged first cable received notification \\charging not supported accessory\\ screen tried cable three power blocks result next tried two cables power block notification pop tried cable original power block result phone charging three cables also tried original cable three new power block charging not supported notification popped againthis leads conclusion cables work properly power blocks bad thing happen different time purchasing power blocks ebay would not charge phone