Is there any hope to recalibrate this pack? eBay purchase

This one isn't as well setup as my first 840 G3, but it checks a lot of similar boxes other then the screen (768p vs FHD). However, for some reason which I will never get the seller removed the battery. Not a big deal so I thought since I know it uses the CS03XL and they are easy enough to replace. However it did not come with screws but that doesn't affect much, if anything.

The issue I am having with the pack is the battery refuses to calibrate - my other one is fine at 89% health but for some strange reason 3 previous attempts have not cleared the persistent calibration issue. I did get it on eBay as a “new” pack and have noticed capacity drops every attempt, so I suspect it may be a “new 0 cycle" pack which may be part of the issue. At this point I'm pretty confident my “0 cycle” theory is correct (and I only paid $27 and noticed a bit too late to be taken seriously -_-) but is there at least a good way to confirm this so I can just put this pack away for a emergency spare to get by and try to find a true 0 cycle that isn't rigged junk? I have an eye on another one I can try, but I'm suspicious of it too since the box is similar to this used pack that was probably reset.

Still dealing with calibration issues but it changed from the 21 error to 20. Still having trouble after 4 attempts…

So it looks like it may work (attempt 5)