[Q] What just happened? And what did I do? topic

I have a motorola photon q that is rooted, and is running CM 10.1. Everything was working fine last night, but when I woke up my phone would not turn on, I thought maybe my charger messed up, but using different chargers did not work, no led, no screen response, anything. I tried recovery mode and fastboot, and couldn't get either to work. When I hooked it into my PC there was no response on either end. I thought about calling sprint, and while dealing with their automated system, I managed to get it to boot into recovery (TWRP 2.4) where I cleared my cache and Dalvik, and now it seems to be working fine.
All I want to know is what happened? Was it just luck I managed to get it into recovery? What do I do if it continues happening?

It's also worth noting that in TWRP it said my battery was at %33 but my phone is telling me I'm fully charged.

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