My MacBook turns on (fan spin) but NOTYHING on screen

My daughter Mabook (A1502) often wont turn on untill the battery is unlugged, Its been getting worse and worse lately, what could the problem be, the Macbbok appears to have power BUT nothing on screen, when I unlug and replug the battery It turns on again.

When i connect it to a external monitor when the WScreen doesnt work it DOESNT show anything there either

Rispondi a questa domanda Anch'io ho questo problema

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If you can get it to startup one more time let's try test the battery out install this gem of an app CoconutBattery take a snapshot of the apps main window and post it here for us to see Aggiungere immagini ad una domanda Give the systems age you may just need a new battery

Let's also try to run the onboard diagnostics. Restart your system and press the D key. Did you get any error codes?

Reference: Mac startup key combinations

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