Evening, all --
I've had this same problem with both the original HTC One X I got two weeks ago, and then again with the replacement for it this past week. Sounds like exactly the same deal: it's fine for days in a row, then I've got plenty of battery power when I go to sleep one particular night, and I wake up the next morning to find it won't even turn on; I've got to plug it in to get it to power up.
Called my carrier and they admitted they can't know everything about every phone or what impact third-party apps may have on them, and the suggestion was process of elimination: take away a few apps at a time and give it 48-72 hours to see if the problem occurs again. I'm just in the midst of testing the first round of deletions.
I'm curious: have people with this problem noticed it happening on a particular night of the week? Or after a certain number of days of being turned on, etc? Because it was the third or fourth night after I first got it that the first total drain happened, and then the fourth night after I got the replacement that it happened again. Tuesday night will be the next fourth night of it running... be interesting to see if it happens again then.
I agree with what's been said before: I don't think it can be a hardware issue or anything fundamental/stock, because then it would affect everyone who has this make and model. That it's a particular app, or a clashing of more than one of them, that's causing the battery to plummet seems the most reasonable approach. The LTE being somehow to blame is an interesting possibility. Be interesting to hear from folks who've had this problem if going wifi overnight still experience the issue.
Icebike pointed out that no one's made an exhaustive list of their apps. I'm quite willing to be the first to do that if others with this problem will join in to see if there are any common items among our lists.
Anyone?
Also, Icebike: you clearly have some clue what you're talking about, so can you please clarify: is putting a phone (any phone, HTC One X or otherwise) on wifi more efficient on the battery than using the data signal? Because with my previous phone, the Samsung Captivate S, I accidentally left it on wifi overnight and found the battery really suffered for it compared to when I had it on the data signal alone.
Which didn't make much sense to me: how is feeding from a router 30 feet from my phone more draining than getting signals from towers miles away?
Yet my wife, who has an iPhone (with enviable battery efficiency, incidentally) has it on wifi pretty constantly -- I think it defaults to link to the home signal when it can -- and her battery usage is amazing compared to mine (even with this new phone), but that's a bit apples-to-oranges.
So bottom line: wifi better or worse than data signal for battery use? And if it's better, are we talking the wifi on WITH the data signal on, or the data signal shut off completely in favor of wifi whenever possible?
Thanks!