Develop Bugs

[Q] Weird Gray Battery Icon

My brother sent me this pic, anyone ever seen this before? I couldn't find anything in the search...
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It means that the battery isnt communicating with the phone so it thinks there isnt a battery installed even though it is still sending the phone power. Tell him if he has TEP on the phone he can just go to his nearest sprint store and they SHOULD give him a new battery.
PS: this is the first time i have ever heard of it happening on an evo. But I have seen it on other HTC Sense devices (the battery status icons are different on Sense devices than that of regular stock Android.)

Thanks for the response!

Epic 4G Touch Battary Voltage Chart

In case anyone is curious, this is voltage/battery% on our phones.
Originally created to see if there is a difference between freshly flashed phones (under 48 hours, black dots) and "settled" phones (over 48 hours, black dots).
This data can be easily acquired using minimalistic text(which is awesome for many reasons) or Battery Monitor Widget by 3c. Im sure there are others if anyone wants to contribute data.
This is with stock 1800mah battery.
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Updated...

Thanks! I just happened to search for this today and happened upon your thread. This was exactly what I needed to know.

Htc one x updating and battery?

Hello.
Is it so witch i have read that updates can make the battery leak power?
Cause as soon as i got the phone in the charger for the first time, i waited for the phone to reach 35% battery and updated it.
Should i have then factory reset the phone to remove old update files witch can give bugs and power leaks?
Cause i did not do that.
Or how does this work?
Cause when i use the phone the battery is being drained by several % in a cpuple of minutes.
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There are numerous other threads with the same topic. Please use the search function T_T
http://forum.xda-developers.com/showthread.php?p=25279018#post25279018

What is mmcpd/0 and why is it eating all my battery?

So, I've been finding myself losing ~50% battery in around 4 hours. Looking at Battery Stats gives me:
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So... what the heck is that, and why is it eating all my battery?

What rom are you on?

Jedi Master X2. I also posted there, and the people on that thread directed me to Agni Kernel, which fixed my problem and then some (~18 hours on battery under normal usage now, which is better than it ever was.) So, problem solved, though I'm still curious why this just started happening all of a sudden (I've been on the same kernel for months with no problems before this week.)

Huge battery drain :(

Hi, i just bought a note 3 neo, imported sealed set. It runs on android 4.4.2, but the battery drain is too much. So i factory reset, and it went back to 4.3, the battery was better, but actually, even better is really bad. When running 4.3, i realized that screen took the most battery power, and i could only have around less than 2 hours of screen time, with full battery. So i updated it using odin, back to 4.4.2, and factory reset, but battery problems still occur. I included the links of images of my battery status, running android 4.4.2
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