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I having this issues with my macbook 13 mid 2011 After power up for short period its will shut down by itself without any message . What could be issue ? Which part fault? Thanks in adv
Commonly on this model shutting down is a bad thermal diode in the PCH die itself that shuts down the machine far before it is overheating. Only solution is a new board. Technically you can replace the PCH but sourcing a good chip would be the problem. Of course check your battery and maybe reload the OS as others suggested before jumping to the board.
Need to troubleshoot it. Does it boot into OS before turning off? Is it plugged in and/or charged when it “shuts off by itself”? Also are you sure it isn’t sleeping?
Lets focus on the battery first to see if thats the issue. Download this gem of an app: CoconutBattery. Paste a screen shot of main window with the MagSafe connected and a second one with the MagSafe disconnected so we can see whats happening. Adding images to an existing question
This could be a failed battery or your charger. Could I possibly see the battery of the phone in a picture? That is, if you’re willing to open it up and take pictures of most/all of the sides.
