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No Bootable device ? Alt - option not work

Hello


I have a Pro retina late 2012 and turned under windows with bootcamp.


After a reboot I got the message more or less classic

No bootable device - insert boot disk and press any key


So I tried to press option nothing happens, starting with cmd + R, cmd + alt + R, Shift nothing works


I tried resetting NVRAM that does not work


I have at startup chime sound mac and then 30/40 seconds after the message


Only the SMC reset seems to work, but so far it does not change


I tried with an external keyboard does not change ca


It was controlled it not took water, the screen works even externally


I reinstalled mac osx from another without problem in usb but I ssd presents the same mistake in the retina.



Or that the intrigues me and that if I start the mac without ssd he does his mac and then the screen goes blank with the backlight turned on but it does not display the message


I do not know what to do anymore


I appeal to you to offer me solutions to test



thank you in advance

Posted on Oct 10, 2015 7:31 AM

Reply
48 replies

Oct 11, 2015 2:16 AM in response to Minitel46

I reinstalled bootcamp windows with the other mac and good news it worked for the restart he passed the error and now starts successfully under windows. I will install the drivers bootcamps. But there is still the problem that I can not have the starting manager to choose another partition or a startup via internet

I also managed to open the pseudo bios bootcamps start with fn + F8, even if it does not help specially

Oct 12, 2015 3:48 AM in response to Loner T

So I was able to install osx he started above all very well except two remaining problems

The first is that the mac is super slow and laggy to the point of being unitilisable, even moving the mouse it is a horror I see or that I thought coming aps can make smc reset and nvram

But the second problem Am I still can not start the manager starting with alt keys at startup and does nothing react CMD + R and everything ..

An idea ?

No Bootable device ? Alt - option not work

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