02-28-2016 12:43 PM
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  1. terence chan's Avatar
    Originally posted by henry-c-n
    Correction. Battery drain became severe again, so I switched back to 8.1 and all is fine. It is not a battery problem on my phone but a software issue.
    Well, I did the same and had the same conclusion.
    02-24-2016 03:38 AM
  2. Madam ImAdam's Avatar
    Its easier than you think. If you've ever removed a Speck case, you're already know how to remove the back of a 1520. There is a tiny single screw between the sim cards you have to remove but once removed, not a big deal.
    Here is a slightly better video for the job. Up until the 3:00 mark, they are removing the battery. This video is about replacing the screen but what you need ends about 3 minutes in.

    I changed my battery today using this ^ link. It was very easy to do.
    When I rebooted the phone, around 9:30am the battery showed 63%, now at 5:45pm the battery still has 55% (although I have not really used the phone today at all, but before the old battery would drain even with out using it.)
    02-27-2016 04:49 PM
  3. Jazmac's Avatar
    I changed my battery today using this ^ link. It was very easy to do.
    When I rebooted the phone, around 9:30am the battery showed 63%, now at 5:45pm the battery still has 55% (although I have not really used the phone today at all, but before the old battery would drain even with out using it.)
    It is what I used as well. When I finished the install, I used it until I got the alert at 6 percent remaining. I put it on the charger and went to bed. Grabbed it before I left for work. 100 percent. When I got home, 87 percent. Only texting, syncing email and about 7 phone calls.
    Madam ImAdam likes this.
    02-27-2016 04:58 PM
  4. Madam ImAdam's Avatar
    Nice! I'm now imaging two more years of use with my "refreshed" Lumia 1520!
    02-27-2016 05:18 PM
  5. terence chan's Avatar
    I think I am close to finding out the cause of this problem.
    I know this may be the battery itself getting old. However, this just cannot explain why this phenomenon was not occurring in 8.1 but only in 10. Therefore, it is likely it is the problem of the software instead of the hardware.
    The battery level had been pretty much stable recently with some ordinary use. However, I notice that there is high drain with the facebook app itself, including the beta version. And most of the force shut down occurred while I was browsing facebook. I highly suspect the windows 10 version of the fb app is the cause here.
    02-28-2016 12:43 PM
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