Forums
New posts
Articles
Product Reviews
Policies
FAQ
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Menu
Log in
Register
Install the app
Install
Forums
Apple Computing Products:
macOS - Notebook Hardware
MBP blacked out, completely nonresponsive
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="pigoo3" data-source="post: 1518858" data-attributes="member: 56379"><p>Sorry...I just reread your original post...and I see that you did already try the SMC reset. You confused me by fully writing out what "SMC" stands for!<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /></p><p></p><p>I'm not really sure what else to recommend. If the battery is good, and the charger is good...AND you do get some response from the power button occasionally (you mentioned that the light on the charger plug turns from orange to green momentarily).</p><p></p><p>Believe it or not...there are not a whole lot of parts inside a MacBook Pro that can cause the problems you have (non-fuctioning computer):</p><p></p><p>- Won't turn on</p><p>- No startup chime</p><p>- No hard drive spin-up</p><p>- No video on display</p><p></p><p>Here are three things that I can think of that may be at fault:</p><p></p><p>1. Bad power button (possible, but unlikely)...since you do get that momentary light change on the power plug. But who knows.</p><p></p><p>2. Bad logic board. Well you certainly don't want this. It would cost more to replace it than the computer is worth.</p><p></p><p>3. Some Apple laptops have a separate "DC In Board". Basically this is a small board that the power charger plugs into...and it is separate from the logic board. I'm not 100% sure if your computer has a seperate DC in board or not (check it out). But if it does...these are a lot less expensive.</p><p></p><p>Unfortunately there's not really any way for a "home electronics person" (DIY) to test these parts (other than the power switch) to see if they are bad or not. The only way to test is to have a known good part...then swap it for the possible "bad" part.</p><p></p><p>Hopefully some of this helps!<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>- Nick</p><p></p><p>p.s. I also wanted to mention that on the newer Apple laptops with the "technically" user non-serviceable battery...disconnecting it like you did was a very good thing to try. I have had power problems with Apple laptops in the past...and when I disconnected the non-servicable battery...then plugged it back in...the computer did restart (when previously it wouldn't when pressing the power button). </p><p></p><p>Unfortunately in this case...trying this step hasn't helped. But at least it was tried!<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="pigoo3, post: 1518858, member: 56379"] Sorry...I just reread your original post...and I see that you did already try the SMC reset. You confused me by fully writing out what "SMC" stands for!;) I'm not really sure what else to recommend. If the battery is good, and the charger is good...AND you do get some response from the power button occasionally (you mentioned that the light on the charger plug turns from orange to green momentarily). Believe it or not...there are not a whole lot of parts inside a MacBook Pro that can cause the problems you have (non-fuctioning computer): - Won't turn on - No startup chime - No hard drive spin-up - No video on display Here are three things that I can think of that may be at fault: 1. Bad power button (possible, but unlikely)...since you do get that momentary light change on the power plug. But who knows. 2. Bad logic board. Well you certainly don't want this. It would cost more to replace it than the computer is worth. 3. Some Apple laptops have a separate "DC In Board". Basically this is a small board that the power charger plugs into...and it is separate from the logic board. I'm not 100% sure if your computer has a seperate DC in board or not (check it out). But if it does...these are a lot less expensive. Unfortunately there's not really any way for a "home electronics person" (DIY) to test these parts (other than the power switch) to see if they are bad or not. The only way to test is to have a known good part...then swap it for the possible "bad" part. Hopefully some of this helps!:) - Nick p.s. I also wanted to mention that on the newer Apple laptops with the "technically" user non-serviceable battery...disconnecting it like you did was a very good thing to try. I have had power problems with Apple laptops in the past...and when I disconnected the non-servicable battery...then plugged it back in...the computer did restart (when previously it wouldn't when pressing the power button). Unfortunately in this case...trying this step hasn't helped. But at least it was tried!:) [/QUOTE]
Verification
Post reply
Forums
Apple Computing Products:
macOS - Notebook Hardware
MBP blacked out, completely nonresponsive
Top