2010 Macbook Pro boots to login screen then shutsdown

DazzerJ wrote:

My beloved Macbook Pro (2010) let me down. It shutdown out of the blue and now won't allow me to log in. If I leave it on the login screen after a few seconds it shutsdown, if I try to log in it shutsdown. I tried to boot from the recovery drive, that fails and shows a Globe icon with an exclamation point. I have tried to boot from Internet recovery, and although briefly I saw "This may take some time" it then failed.

I have the original install CD, but it just shows the Apple icon on screen and does not boot. I have tried to create a bootable USB via my PC, but it will not show as a drive when I try to start it with that inserted.

I think it might be the processor died, I tried to boot to safe mode and received a "Panic 0" mapping alias chain exhaustion

Can anybody shed any light on what I can do to recover the laptop? If it is the processor, can they be replaced? How does it manage to reach the login screen without a processor, is that data cached in an EPROM somewhere?

Thank you in anticipation of a saviour.

Is this with the mac plugged into power?

Do you know status of the battery?

>(Option key) System Information>Hardware>Power>Condition

Some macs need a working battery to boot. You can try disconnecting the battery and try again...

if in doubt—

In or out of warranty you can get a free over the counter 'Apple Service Diagnostics' test /assessment

Make an appointment for a "hardware issue"

Genius Bar Reservation and Apple Support Options - Apple

Outside the USA

Contact Apple for support and service - Apple Support