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I just bought a new phone, it is Android 4.4.2, but it seems that it has a problem with its battery. Every time I turn on the screen, the battery drops 1%. For example, the battery is 30%. then I close the screen and turn it on again after a minute, and then in few seconds,the battery becomes 29%. It only happens when I turn on the screen, but when im using it, the battery discharge is normal. How can I fix it?

  • the phone model is My25 (myphone) the battery usage says the cell standby drains 46% of the battery, i understand this because i always use data connection. Thanks for the reply @beeshyams – user142768 Dec 23 '15 at 11:36
  • i've noticed that Phone idle is using 26% of the battery., while screen is using 17% – user142768 Dec 23 '15 at 12:17
  • I've turned off the features. How to use safe mode? – user142768 Dec 23 '15 at 12:30
  • i've used safe mode but the battery still drops – user142768 Dec 23 '15 at 12:42
  • i've done that before, but the battery still drops. maybe it is a bug? – user142768 Dec 23 '15 at 13:48
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Based on our chat, things which were tried are:

  • Turning off "proximity sensor" and "Smart Stay" (to rule out malfunctioning causing battery drop h
  • Checking screen usage from inbuilt battery statistics (seemed to match usage)
  • Booting into safe mode and observing battery drop
  • Factory reset to rule out rogue app causing this

OP has confirmed that the Battery drop continues as stated in the question

Being a new phone, it could either be

  • ROM bug, which can be checked from user forums. If it is a reported bug add if the OEM rolls out a fix then the problem is solved
  • Defective piece, which being in warranty can be exchanged (Recommended course of action on my opinion)

(Flashing stock again is an option but do not advise it as rooting methods, flashing tools etc may not be readily available being a lesser known phone My25 (myphone). Flashing a custom ROM for the same reason and absence of developer support , is not recommended)

  • Have you been able to fix it? How? – beeshyams Jan 6 '16 at 11:52
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There is a new thing in android called Smart Pixels. It is available in some custom roms like AOSP Extended (I don't think it is available on kitkat) or an android app called Pix Off

you can choose to disable a percentage of pixels on your screen to save battery :)

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