°µÍø½ûÇø

Macbooks have all their components welded to the mother board; no hard drives or sticks of memory possible to replace. Due to that every Apple workshop is a good lab. Regarding your issue, If everything works fine after a reboot then I dont think about a bus cable issue but the chip of the graphic component wel.  You should take a snapshot or backup of your files, no matter where you will send your laptop

Go to Apple website the navigate to Service & Support, there you can then search for authorized Apple service centers in Vietnam. 

@Dannyroc3

It is more likely to be the graphios chip or assocaited circuitry.  Keep your data backed up and get a new one when ready (as you say, maybe cheaper out of VN).

If your ipad will keep you happy for 6 months you can get the good sales in November.

If this macbookpro has lasted 8 years that is an exceedingly good run, buy another of the same quality?  I have a high-end HP laptop of similar vintage and I have bought the replacement in preparation.

@KKK36 the only problem I had with the MacBook pro was these years models had defective keyboards. Apple changed mine 2 times. The battery is connected to it so that was changed also.

I will look into how to back it up, I think it has something to do with the Time-machine feature?

when I have taken it in before, for repair, I just dragged stuff to a thumb drive.

I thought the Pro model had more features but it sounds like you are saying they are better. Quality?

I know they are heavier. One thing I noticed on the new models is the USB’s inputs are only two or three.  Mine has four with one not working.

I got some helpful comments but no recommendations on where to buy a new one If I go that route.

In the US I typically buy a last years model, still in the box off eBay, which saved quite a bit.