Chosen Solution
When I press power button computer will not turn on. Light on side blinks for 3-4 seconds and stop blinking and off. Keyboard doesn’t work: when I press Cups Lock it’s light does not go on. iPhone doesn’t charge when plug into computer. Only white light on edge of computer.
this could be a problem with the logic board you may want to bring it to apple if you still have warranty on it.
First the blinking lights usually indicate a RAM problem. Try reseating the RAM one stick at a time in each of the slots. You may have a bad stick or a bad slot.
