I can access Recovery Mode but I don't have any backups for the system before I tried to install this update (really bad planning on my part, I know). After searching on Google it appears the only solution is a factory reset and installing files found on this website, but before I do that I want to pull my data off my phone. When I connect my phone to my computer via USB it doesn't show up at all under Computer.
I have the following programs installed that I think are relevant:
Team Win Recovery Project
Titanium Backup (with paid key)
I've tried scouring Google for days but I must not be using the right key words because I can't find anything relevant to my specific issue. I've found mention of "ADB Sideload" but I don't understand how that factors in-- I haven't found anything in simple enough terms for me to understand (I'm extremely un-knowledgable of phone-related tech talk).
Please help! Thank you!