I checked and replace the PRAM battery and did not work. It turns on the white power button, the hard drive spins not full on as it used to and the screen does not turn on nor the back apple is lit.

If you hear a startup chime and the screen stays black, connecting the computer to an external monitor will tell you whether or not the display is faulty. If it sounds like the hard drive is spinning up, then stoping, it’s possible your HD is failing. Ouroboros is right that a little more information would help. Like I said most of the time these two solutions do not fix the problem but are quick and easy to try. Hold them until after the chime, if it gets that far. Resetting PRAM is done by holding the P, R, command and option keys as the computer is turned on. After doing that replace the battery try to turn it on. You can reset the SMC by removing the battery and power from the laptop, then with no power hold the power button for about 30 seconds and release it. Most likely neither will fix the problem but sometimes they will. The adapter displays a green light, tried with a few different ones, all indicate that my battery is charged.yet I can’t see the light in the back at all.When I try to start it, it sounds like the harddrive is working but after a few seconds just stays making the same attempting noise to start up.Basically sounding like it’s in the process, but it wont start…screen stays black the whole time.I don’t know what could be wrong with it :( Please helpĪ couple of things that are easy to try on a mac are to reset the SMC and PRAM. I have fully charged the battery, yet there is no light in the back. Hi, i’m having an issue with my macbook pro 17.

Macbook pro mid 2010 battery