I just installed a Mountain Lion update and as it was finishing, I heard the computer make a short beeping sound and then the screen went black. I tried pressing some keys but the screen remained black, despite the power light and fan remaining on. After pressing and holding the power button, the fan and power turned off. The computer will not turn on now.
What's going on with it??
MacBook Pro (13-inch Mid 2010), OS X Mountain Lion (10.8)
Hello Ya_dont_say,
Sorry to hear your MacBook Pro is not powering on. I found an article that can help with getting your MacBook Pro to power back on:
Intel-Based Apple Portables: Troubleshooting a computer that will not power on
http://support.apple.com/kb/TS1365
I would start with the first step and work through them, but if you have verified your computer has power and disconnected all external devices besides the power adapter, step 6 might be the most useful:
6. Review the steps for resetting the SMC (System Management Controller) (http://support.apple.com/kb/HT3964) on your Apple portable computer.
I hope this helps get you back on track!
Best,
Sheila M.
MacBook won't wake up, just installed lion update
