Chosen Solution
Hey guys, so I’ve reviewed the forums for a few hours and tried quite a few things to get this laptop to go on. Basically, it came in for a no power issue, no matter what you did it didn’t power on. At first I thought it may be a battery, so I replaced it to no avail. I then read online that if I hold the power button for 10 seconds and the plug the device in and continue holding the power it would power on, and it did. Now it would go to about two thirds of the loading bar, I would press the power button and it would boot to the login screen but only last about 2 minutes after you logged in. I then reset the PRAM, no success, then I reset the SMC, no success, then I removed one RAM stick at a time, no success. Also, I forgot to mention that the fans are running at full speed as soon as the device tries to boot, I tried to clean any dust out, but there wasn’t much there to begin with. Now I have it in front of me, it boots, fans full speed, sometimes to two thirds of the bar, sometimes to the login screen and about 30 seconds after logging in to a user it automatically powers off and automatically reboots and repeats over and over again, even if the lid is closed. If I unplug it from a power source, though, it stops trying to boot. I’ve also noticed that there is an X over the battery symbol no matter what battery I have in the device. Let me know if you can think of any solutions!
OK, The battery checker test was to remove a possibly of the checker causing the issue. Carefully disconnect the battery again and plug the checker back in. As you’ve replaced the battery you either got a bad one or the charging logic on your main logic board is messed up. At this point I would install CoconutBattery so you can see whats happening while it’s charging and when its on battery alone. Now take a screenshot of the main screen of CoconutBattery which the charger is plugged in and a second when its on battery. Paste them here for us to see Adding images to an existing question In the meantime review this Apple T/N to see if the cord is OK and MagSafe connector on your system and cord are in good working order as well as check that you are using the correct charger for your system Apple Portables: Troubleshooting MagSafe adapters
it looks like a failing graphics chip. try to re-flow the chip with a hot air station or hair dryer. The reason to why i think this si the problem is because the fan is spinning at high speed constantly. indicating that something is getting hot or there is low airflow so clean the old thermal past and replace it with new one and clean the fan and CPU thermal paste as well. This should solve your issue.
Hey Christopher you should open up the back of the computer and locate the battery and unplug it for 30 second within those seconds clean the port where is plugs in and the plug that powers the computer and the battery best of luck.
