MacBook Pro won't start (2013?)

[CrockAlley]

My partner has an old, disused MacBook Pro, maybe 2013. I've decided to see if I can get it working.


The power button doesn't work. Sometimes when I connect the magsafe, it begins to start up. When I unplug the battery, it will reliably begin startup when I connect the magsafe.


Regardless, it only gets partway through the progress bar before shutting down.



• I've gone through the steps to reset the SMC and NVRAM/PRAM, but no change.
• I've done option-command-R to upgrade the OS. The appropriate screen did appear, the installation seems to have completed, but when returning to the startup screen, it still shuts down. 

• I cannot get into safe mode.
• I got into recovery mode, but it shut down on the language selection screen.
• I did the hardware test and it didn't return any errors.

Any ideas? Thanks for any help.

 

[Audit13]

Is this a retina MacBook?

 

[Fishrrman]

Is it retina or non-retina?
Non-retina has a DVD drive slot on the right.

 

[CrockAlley]

This one does have the disc slot on the right.