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30% battery issue

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XxVcVxX
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Default 30% battery issue

Recently after updating to 4.4.2, I've been experiencing a weirdass issue.

The phone will drain normally/fast from 100% to 40%, with system_server draining the most, and then once it's at 40%, the radio will malfunction, sometimes not getting a signal and sometimes showing full bars but it actually doesn't have one.

At 30%, I cannot get any reception whatsoever, even with turning airplane mode on and off. And then a while after hitting 30%, the phone will just die instantly, no "Powering off" popup, just sudden black screen until I plug it in again, in which case it it will be partially reset in the fact that I will show the "Android is upgrading" popup and the clock and date will show 8:00 and 1/1/1970 respectively. If I manually shut the phone off, it can't be booted up again until it is plugged in.

Any ideas?

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THEBANDIT420
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Are you rooted? If so wipe data or flash a new rom if not Idk try restoring using the factory images

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XxVcVxX
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I tried all those, even wiping the external storage, still no go. I'm on stock rooted

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THEBANDIT420
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Sounds a bit like this guys issue
http://forum.xda-developers.com/show....php?t=2587619
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XxVcVxX
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The limit has been increasing, now it dies at ~55%, and I can't manually reboot no matter what, it'll always need an AC power source to boot up

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