Hi. Sorry if I'm jumping in late to an old thread. But I believe I can share some information that may help others with the same battery drain problem after the 4.4.2 update. Shortly after 4.4.2, Google acknowledged there was a bug in the update relating to camera hardware that was causing severe battery drain for some users. According to articles I read at the time, the bug was one of the patched items in 4.4.3. Sorry, I have no links to those articles but I found them via searches on Google. Although the bug had nothing to do with the Skype app, I read that something in Skype could trigger the bug with the camera software and that would start the battery draining unusually fast. I removed Skype from my phone but that had no effect. I had to do a factory reset after which I did not re-install Skype. My battery drain problem seemed to be repaired. However, since the reset, the battery drain problem had re-appeared several times. I haven't nailed down the exact trigger, but the last time this happened (yesterday) it was after I used the camera.
In a typical day I start off with a 100% charge if I have plugged in overnight. By the end of the day with my normal light use I'm getting down to around 80%. On days when I realize that I'm having battery problems, I'm down to 80% by the time I arrive at work (when normally I'd be around 98%) and the phone feels warm to the touch. When this happens, I have to shut off the phone and remove the battery. When I reassemble the phone, the battery drain problem is gone, at least until the next time.
I wish HTC would put together a 4.4.3 or higher update for the Desire. But I don't think enough people have experienced this problem or have just decided to live with it until they can switch phones.
Anyway, hopefully this information can be helpful to someone.
wmo43
^ this. I only just updated to Kit-Kat recently and immediately started having this problem. Same massive battery drain issue and the handset was getting very hot to the touch which was quite worrying.
Rummaged around on the internet and found this about the known bug:-
KitKat giving you battery drain problems? Try uninstalling Skype, says Google as it prepares a fix | ZDNet
Took Skype off my phone. Re-booted and BINGO! Solved the problem immediately. Phone is cool as a cucumber and completely back to normal battery usage (I'm not using a Desire but an HTC One Mini btw but I saw this thread and wanted to help). I can live without Skype on my phone as I primarily use WhatsApp in any event and have Skype on my laptop. Might put it back on at a later date once they patch this and see what happens but for now removing Skype definitely proved to be my knight in shining armour.
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