help me resolve my problem

[nikigetso85]

I have macbook pro 15” from 2015 model number is A1398
and with no reason it shuts down itself without any notice.
First the screen goes black but the machine is on but after few seconds it goes off. It dose this not in a particular time or situation.
I asked mac support but they require to leave my mac for 5 days which i can effors as im working on this mac and have all the files any everything, i know its hard to tell like this and most definitely i will bring it to them however maybe someone had same issue and know what can be wrong with it? any suggestions?

thanks

 

[Audit13]

This happens when connected to a charger?

How is the battery health?

 

[nikigetso85]

battery is fine, i have changed it myself and did not fix the issue.

 

[Audit13]

Could your MacBook be a mid-2014 15"?

 

[nikigetso85]

yes, i think it is that one

 

[MBAir2010]

yes, i think it is that one

while investigating MacBook pros Sunday, I saw this article on your model and problem
their English is ok but not to the exact point, so I stopped reading.

hopefully it's a pram reset or something like that
and the 2014's are more reliable than SOME the 2015-2019 15" which are getting recalls still today.

hope this help, and good luck!

 

[Audit13]

I asked whether it is a mid-2014 15" because I was asked by a friend to look at his MacBook that did exactly the same thing. The easy fix was to change the SSD from the Samsung SSUAX to an SSUBX.

What was happening is this: my friend's SSD would allow the CPU to go into a low-power state. Unfortunately, it would go so low that it did exactly what your model is doing.

As a test, try running the OS off an external drive and see if the same thing is still happening.