1. Android Central Question's Avatar
    I bought the huawei P9 about a year ago, and for the past 2 months, it has this strange often occurrence which is the phones battery is 20-50%(has happened between the range) where for an example i open my camera, take a photo, the phone freezes, and shuts down in 10-20 seconds and restarts with 0% battery, and then completely shuts down, and when i put it on my charger it shows 20-50% battery life immediately.
    It has also happened with other applications like chrome, music, clash royale etc. So it's not app specific, could use some help.
    Thank you in advance.
    01-16-2018 10:02 AM
  2. belodion's Avatar
    See whether it persists in Safe Mode.
    01-16-2018 01:56 PM
  3. Ivan Hirman's Avatar
    Um, mind helping me enter safe mode?
    I've tried turning it off and holding volume down but im obviously doing something wrong since it's not starting in safe mode
    Oh and i forgot to add im running the 5.0.1 emui and 7.0 android
    And the battery problem is sometimes just complete drain or really fast draining like a percent or 2 per second.
    01-16-2018 02:27 PM
  4. belodion's Avatar
    I'm not sure about your phone, but Safe Mode is normally entered by holding Power as if to power off the phone, then long-pressing on the 'Power Off Phone?' box that appears.

    A Power Off & Restart is the normal way of exiting Safe Mode.

    Bear in mind that your problem may simply be due to a bad battery or other hardware fault, but it's worth trying Safe Mode first.
    01-16-2018 07:38 PM
  5. fourG's Avatar
    I had a similar problem with p9 - phone got in my pocket, can't detect wifi at home, need to charge the phone twice a day, battery drop from 60% plus to 1% in a few minutes, camera freezes when taking a photo while the only solution is to restart the phone......

    I called the customer support and was advised the need to repair. I was prompted that I updated the OS not long ago. I recall that the problem seemed to correlate well with the system update. The only way to get back to my older version of operation system is a factory reset. With quite a bit of reluctance, I backed up the phone with HiSuite to my PC and did the factory reset!!!

    My phone is back alive as new. The battety problem has gone completely. Please note though, don't use the internal memory option for phone back up. it doesn't work. It is safe and quick to use HiSuite to back up your data, apps, contacts etc. to PC. It is easy to restore your data from HiSuite but you will have to log in again to all your app accounts.

    In short, a factory reset will do the trick to revive your Huawei p9.
    05-17-2018 04:53 PM
  6. Rukbat's Avatar
    A factory reset doesn't give you back the older version of the operating system, it just removes additions you made to the phone (like pictures, apps, settings, etc.) The only way to "get back" an older ("original") version of the operating system is to flash one.
    05-17-2018 05:09 PM
  7. richieferia's Avatar
    I have the same issue with my P9. Even after a factory reset, and turning the unit over to my daughter, she is now the one complaining. Unit is about 2 years old.
    08-20-2018 04:44 AM
  8. Mooncatt's Avatar
    I have the same issue with my P9. Even after a factory reset, and turning the unit over to my daughter, she is now the one complaining. Unit is about 2 years old.
    Your battery is probably bad and should be replaced.
    08-20-2018 07:45 AM
  9. Hannah Shachar's Avatar
    I have exactly the same problem. I use my camera, the phone freezes, then turns off and says it has no battery when previously it did. When I connect it to the charger, it suddenly remember that it has 46%.
    09-21-2018 10:42 AM
  10. bubu333's Avatar
    The dual camera system in P9 is extremely power consuming. My battery is 2+ years old and I have similar issues.
    11-08-2018 03:54 AM

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