Screen backlight delay: slow to turn on

MikeOrlando02

macrumors newbie
Original poster
Oct 8, 2019
4
0
I just picked up my first macBook Pro. It's a 2015 retina that I got refurbished on eBay. When I turn it on, I hear the startup sound, but it can be a few seconds before anything is on the screen When the screen does appear, the apple logo is up and it is about halfway though the status bar for starting up.

Seems unusual. When I shine a flashlight through the back of the lid through the Apple logo, I see the screen is actually on, just not the backlight so I cannot see what is going on. From the little use I have had with it, after the initial delay the screen seems just fine.

I tried to do a system restore, thinking it could be a macOS issue. Same thing happens when I COMMAND + R and continues after the OS has been reinstalled. I tired a few re-installs of macOS, twice there were issues with the recovery partition and I think it wanted to download everything from the internet again.

When this happened I wanted a long time, no screen. I used the flashlight trick and I saw the spinning globe and it wanted to connect to the internet. Both times the screen did not come on, but closing the lid and opening it again immediately worked. I only had to close and open the lid during the restore process. Otherwise it is just a few second delay during the boot where the backlight doesn't come on right away.

I believe I followed the instructions right to attempt to reset SMC and NVRAM, but that didn't seem to have any effect. Are there any other suggestions or ideas what could be going on? Should I be concerned to keep this MacBook? I got a decent deal and it is great physical shape so I would like to make it work if i can!

--- UPDATE ---
Just tried an internet recovery again, for whatever reason when I do this as soon as I close the lid the apple logo lights up and when I open it I see the spinning globe for the internet recovery.

This isn't what happens when I start a standard recovery or just boot normally I just have to wait a bit for the backlight to come on, closing and opening the lid in this scenario changes nothing.

Some sort of firmware issue?


Thanks in advance,
Mike
 

chscag

macrumors 68040
Feb 17, 2008
3,195
991
Fort Worth, Texas
That machine uses LEDs to provide backlighting. If the backlighting is defective or intermittent, the entire display would have to be changed out since the backlighting is contained within the display housing. Personally I do not trust anything from eBay that says refurbished. The only place to buy a refurbished Mac or iOS device is from Apple.
 

MikeOrlando02

macrumors newbie
Original poster
Oct 8, 2019
4
0
Thanks for the info. I just find it strange that it only happens at startup and consistently in the same way. Once it is started it is flawless. The difference between a normal start, restore restart and internet restore are also very odd that they are consistently different.