Why is my battery depleting so quickly?

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HTC One M9

The third-generation HTC One smartphone which was first released in March 2015. Its major revisions on the M8 design include the octa-core Snapdragon 810 processor and a 20-megapixel rear camera.

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Andryson Cher @typicalasian

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Posted: Apr 30, 2016

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Why is my battery depleting so quickly?

I recently fixed my htc one m9 LCD after dropping it. It wasn't that big of a fall, however it damaged the LCD without cracking the glass. So I went ahead and fixed it. I have to mention I am trained and have repaired htc models before so I have a good idea about what not to do when it comes to repairs. After the job, for some reason my battery has started dieing really quickly. It doesnt last more than 8 hours standby.

I haven't had the issue prior to the fall/repair so i went ahead and changed the battery because maybe I damaged it. However, despite my efforts, I am still facing the same issue. The only improvement that I've had is that it's not heating up as bad as it use to.

In addition, it randomly activates airplane mode.

Please help !

Answer this question I have this problem too

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iApple @iapple Rep: 3.6k 10 10 3 · Answer 1 · 2016-04-30T16:52:10-07:00

iApple @iapple

Rep: 3.6k

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Posted: Apr 30, 2016

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Hey Andryson, you should try to disassemble then reassemble the device:

HTC One M9 Teardown

Maybe something else was broken after the fall.

-I also think you should try to replace the motherboard. The airplane mode randomly activates and the battery draining fast sounds like an issue with the motherboard. Here's the guide for replacing it:

HTC One M9 Motherboard Replacement

-Let me know how it goes.