Chosen Solution
MacBook will not power on at all. It doesn’t respond at all, but when I plug in my charger the light does come on. Sometimes it is flickering though but it’s been solid for about a half hour. The laptop was sitting for a while and now when I went to power it on it won’t!
Can tell us a bit of the history? Also try holding P, R, Option, and Command keys at the same time. Then while holding them, press the power button and hold the keys until u here the chime 3 times.
Oh, boy. James, given that you had a “swollen battery,” it sounds not good! Swollen power sources are often caused by excessive current drain (overheating), which are often a result of a “short circuit,” which often remain until the component causing the “short” has heated to the point of decomposition - which results in a new problem, an “open circuit.” At that point, repair becomes expensive and not worthwhile. Unfortunately, it requires some skills to determine this. How’re you voltmeter / electronic troubleshooting skills? You mentioned you had changed the battery; did you happen to scan the exposed circuitry to see if you could spot any other swollen or blackened components or fried conductors / circuit tracks? As Lord Vader asked, can you tell if the fans start running? Can you check the voltages on any of the components - to see if any exists? This sounds like something more than a mere software problem…
Try this. Disconnect all power sources.
- Hold the ‘option’ key down.
- Plug in the power source.
- Keep holding down the ‘option’ key for about 5-seconds and then release.
- Disconnect all power sources and wait for 10-seconds.
- Plug in power source and power on computer. This has worked for me on countless occasions. Thanks to the guys at Stockley Park that told me this years ago.
