No Bootable Device Predator PH315-51

Hey all,

I've gone through every post and forum I can find looking for solutions to this issue and have had no lasting success.

My Helios 300 which I've had for about 6 months will frequently and randomly start up to greet me with a No Bootable Device Error. I first had the issue in November and could get past it with a battery reset. I thought it was gone permanently after I disabled fast boot in BIOS and Windows and didn't have any issues for over a month.
However, after updating to the latest version of Windows (the major security update that came out earlier this month) the issue has returned and is much harder to mitigate, even causing my device to crash while in use twice. Sometimes a battery reset will solve it, disabling and re enabling secure boot has worked, changing settings in BIOS and resetting to default, and more random solutions that don't give me any good pattern to work off of because they work sometimes and other times don't.

When the issue is going on, I see absolutely nothing in my BIOS in the boot menu. It's like the SSD has vanished.  I can't try the Legacy mode either, the only option in my BIOS is UEFI. 

I tried a system restore back to my old Windows version only to have it crash to the same no bootable device screen during the process, so I tried a Windows reset, also no lasting success.

I've run chkdsk/r countless times when the computer has been running and the Windows install itself seems to be okay. I recently moved all my game installs to an external drive so the SSD isn't super full either.

I'm worried that it's the SSD itself or the Mobo wigging out and not working properly since I've tried every software fix that I can think of.

I don't think the laptop has been physically damaged, my backpack has a well padded laptop sleeve where I keep the computer and the charger and I am careful not to throw the device around. I had no issues through two plane flights, two days of road trips, the problem only resurfaced after the Windows update (which is confusing because Windows seems to not be the issue).

Is there anything else worth trying before I go to the effort of sending it to Acer? I am a college student and so being without my computer is less than ideal, but I can get by in the interim with the library computers. I would open it myself to look for physical problems inside as I've built several PCs and have good know how, but I don't want to risk voiding my warranty and being in an even worse spot.

Thanks in advance for any advice.