Mid 2014 Retina MBP random shutdowns
About 5 days ago, I started getting random shutdowns. It isn't really going through a shutdown sequence I don't think, as there is no "dial". The screen goes dark, but there is still a glow to the screen. The keyboard light stays on for maybe 10 seconds, and then the computer turns off. When using the battery, it seems to happen more often, but it doesn't always happen when using the battery. Seemed to happen a lot around 60-70% battery. Sometimes it happens at 100% battery, plugged in or not plugged in to the original Apple recharger. Everything looks fine in coconutBattery. Sometimes it happens once every hour, sometimes it won't even let me log in. Temperatures look fine using Hardware Monitor. I was able to discharge the battery twice to 0% using Safe Mode. Sorry I don't remember if Safe Mode completely fixes this problem... seems I had a couple shutdowns while using Safe Mode too, but I can't really remember. So I'll try it again in not-safe-mode after I get it to 100%, but I'm not optimistic that the problem will be fixed. It seems I was reading solutions that maybe don't apply to my particular MBP. So to recap, this is what I've done:
1. erased hard drive, reinstalled OS X, updated completely
2. reset NVram/pram and reset SMC through various methods, including the official method (10 second hold with charger unplugged), and including disconnecting battery and holding power button for 2 full minutes.
3. discharged battery to 1% twice using Safe Mode.
4. ran D diagnostics at startup, it found no problems
I am trying to meet deadlines for my Master's Thesis, which is why I'm posting this now, instead of waiting until after my Apple Store appointment, or waiting until after my battery cycle experiment. I'm not optimistic that either of these will be the solution that works. I'm not replacing the logic board! I'll much sooner sell this thing for parts on eBay and buy another lightly used one. Mine has seen very heavy use for 3 years. But I'd rather just fix it!
Oh, one more thing... when I log in to my administrator account, the screen flashes with horizontal white bars covering about 25% of the screen. This seems quite odd to me.
Questa è una buona domanda?
Did you bang or get your system wet (spill a drink) at some point?
Yes, may have banged, maybe a couple weeks ago? Possibly a week ago? That happens. My system has a lot of dents. But I don't think it got banged overly hard. And the problem built up slowly and got worse. But that could be it. Is there a part I can replace? BTW I finished the 2nd battery cycle test and the problem still exists.
da Steve Kiraly
How full is your drive SSD's need free space! I recommend leaving 1/3 free on 256 GB and smaller and 1/4 free on drives 500 GB and larger.
If your drive has space then you likely have a more severe problem thats going to need deeper testing.
No liquid was spilled at all. I erased the SSD and reinstalled from Recovery. So I have tons of free space, and virtually zero extra software installed right now. So I guess I have a more severe problem. Can you recommend any deeper testing tools that preferably don't cost too much? I noticed TechTool but it costs $99. Don't want to spend that. I guess I will see what happens at Apple tomorrow.
da Steve Kiraly
I just realized that the flashing horizontal bar phenomenon happens when logging in at the 2nd login screen when using Safe Boot. Doesn't happen at the normal login screen. So anyway, that might be normal. The only software I added after reinstall is VLC, coconutBattery, and Hardware Monitor, and Geekbench. So 236 GB free. Thanks very much Dan for your help!
da Steve Kiraly
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