Retina MBPro wont boot. Ideas?

[harsaphes]

Hey guys. My RMBPro wont boot. I hear the chime for it turning on and nothing happens. The screen "slightly" turns on, grey/green/blackish background. I have an appt. at the Apple store but thought I would see what the experts here think.
Thanks.

 

[Deinos]

Hey guys. My RMBPro wont boot. I hear the chime for it turning on and nothing happens. The screen "slightly" turns on, grey/green/blackish background. I have an appt. at the Apple store but thought I would see what the experts here think.
Thanks.

Probably a silly question, but did you try attaching it to an external monitor to check if it is in fact not booting vs a damaged screen? I notice you mentioned it chimes when powered on. Do you hear any other noises or indications of function (e.g. keyboard backlight turning on, fans kicking on, sounds if you press a key/volume, etc).

I did a quick google search and found this forum entry, which appears to have some of the issues that you have already mentioned.

Edit: What year is your rMBP? Might want to have a look at this. I guess MBP's between 2011 and 2013 have had known gpu issues to the point that wty coverage has been extended for that specific problem. Best of luck!

 

[harsaphes]

2014 model. Not that old in really great shape...only really used for browsing and Civ 5 sessions.
No other noises.
It really sucks as my new iPad pro wont even turn on..also a known problem.

 

[SuperSubZero]

You can try PRAM and SMC resets, but this issue sounds a little more extreme. On older MBPs it indicated a failing GPU.

 

[Archer1212]

https://support.apple.com/en-us/HT204063
Reset your NVRAM (sometimes still called PRAM), the website says to hold the keys until you hear the boot chime twice, I reccommend at least 3 times, I have had a few weird start up issues that are not resolved unless I heard the chime 5-7 times.

 

[harsaphes]

worked. Thanks.