This kinda fun because I was just talking to a relative of mine who lived in Hong Kong about this very subject & they said that the idea of warranty & returns isn`t a concept they understand their.
The battery came back to 4.2, 4.2, 4.2, 4.2, and 4.19.
Awesome! Maybe after a few more discharge and balance/charge cycles it will get all the way up to 4.20. Either way at least it's within 10mV. Now the main thing we need to look out for is how well our suspected problem cells stay in balance with the other cells after putting them through some runs.