I saw that there was a new update for the phone this weekend, once I got back home from a music festival I updated it. Now, the battery drains fast and it doesn't seem to charge. I tried other cables, other outlets, my computer. Nothing works. It doesn't even connect to my laptop or computer, denying me access to my phone's files.
In all cases, it does show the charging icon.
It seems that this is an issue caused by the security update from the 15th.