My late 2012 MacBook Pro turns off at start screen

I Just got the display replaced on my late 2012 MacBook Pro and when I turn it on, a white screen shows up with a grey apple logo and a loading bar underneath. When the bar fills up about an inch, a gear circle shows up for a few seconda and my computer shuts off. Could anyone help me with this please?

Hello TUTBUR,
I'm sorry to hear you are having issues with your MacBook Pro. If you are unable to boot past the grey Apple screen, you may find the information and troubleshooting steps outlined in the following article helpful:
Mac OS X: Gray screen appears during startup - Apple Support
Sincerely,
- Brenden

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I have read many articles today and I remain a little confused. I have seen the Apple discussion at http://support.apple.com/kb/HT4392 regarding "Standby Mode", but I appear to have limited progress.
Can the community verify if "Standby Mode" (controlled by pmset) be used on a late 2012 MacBook Pro. This is a model without the Retina display, however, when I do pmset -g... I do see standby in the display (as seen below) which implies it should be active.
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autopoweroffdelay    14400
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ttyskeepawake        1
hibernatemode        3
hibernatefile        /var/vm/sleepimage
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sleep                2
acwake               0
halfdim              1
sms                  1
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autopoweroff         1
autopoweroffdelay    14400
standbydelay         1800
standby              1
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displaysleep         10
networkoversleep     0
sleep                60
acwake               0
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Thanks for the input Michael.
The thing that started this, is the new Late 2012 MacBook Pro simply uses much more power in "sleep" mode than what I experienced on my old Late 2007 White MacBook. Every night, the "sleep" mode would result in almost a drain of the battery and the result is that I was unneccessary cycling the battery. With no OS revisions to address this, I have changed the defaults to enable hibernate for both the charging and battery mode.
The strange thing about this is that even to get a true hibernation in battery mode I have to unplug all USB devices or the device will not hybernate. Again, never had to do this on the old White MacBook and the power usage at night was very small.
This works for now, but I think a device should sleep with very little (less than 4%) power loss when power is disabled.
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Battery Power:
lidwake              1
autopoweroff         1
autopoweroffdelay    14400
standbydelay         1800
standby              1
ttyskeepawake        1
hibernatemode        3
hibernatefile        /var/vm/sleepimage
displaysleep         1
sleep                10
acwake               0
halfdim              1
sms                  1
lessbright           1
disksleep            5
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lidwake              1
autopoweroff         1
autopoweroffdelay    14400
standbydelay         1800
standby              1
ttyskeepawake        1
hibernatemode        3
hibernatefile        /var/vm/sleepimage
womp                 1
displaysleep         10
networkoversleep     0
sleep                60
acwake               0
halfdim              1
sms                  1
disksleep            5

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<Edited by Host>

olacurrency wrote:
error code: 4SNS/40000000: IPBR-9.165
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Genius reservation http://www.apple.com/retail/geniusbar/
on-line https://getsupport.apple.com/GetproductgroupList.action
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Ishaan.3108 wrote:
I haven't backed up, and I have about 270 GB of important data stored that I CANNOT lose.
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My late 2012 MacBook Pro turns off at start screen

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