1. Android Central Question's Avatar
    I have a Samsung J7 running Oreo. Until about a month ago, it was running Nougat. The switch is when my troubles began.

    Literally within hours of the upgrade I started noticing a handful of things going wrong. Most noticeably, the battery drains in ways this phone never did, not all - but most - of the time, apps take MUCH longer to open, and secure folder sometimes simply locks the phonescreen when trying to open it! I know these are Oreo issues since I saw them all appear literally the day I upgraded to Oreo. In fact, I didn't even recognize the "low battery" sound notification when it showed up the next night since I had never hit it before on this phone!

    Without rooting, is there a way to either rid myself of these issues, or of Oreo?
    12-10-2018 10:49 AM
  2. dgelerin's Avatar
    Just adding a reply to be able to follow this since this is my question, but, for some reason, it didn't mark it with my name.
    12-10-2018 10:52 AM
  3. chanchan05's Avatar
    Reverting to Nougat will mean a reformat of the device so you lose everything. So you're better off just doing a factory reset first anyway and seeing if problems persist. Usually a factory reset clears all problems caused by updates.
    12-10-2018 11:12 AM
  4. dgelerin's Avatar
    Don't I lose everything in a factory reset as well?
    12-10-2018 12:59 PM
  5. hallux's Avatar
    You do, but that's the point. If you're going to try reverting the OS to an older version, which results in wiping the device anyway, just back up your stuff and try a factory reset and see if the issue goes away. If it does, you've now saved yourself the trouble of trying to revert to an earlier OS. If it doesn't, you're not any worse off if you had the tools lined up to revert anyway.
    12-10-2018 01:13 PM
  6. dgelerin's Avatar
    Got it. I have SmartSwitch already on the PC. I'll try to back up and factory reset. I'll report back with any updates.

    12-10-2018 01:17 PM
  7. Rukbat's Avatar
    If you haven't yet, you can restart to recovery and clear the system cache. Sometimes a new version will pick up something in the old version's cache that will cause it to operate strangely.
    12-10-2018 04:06 PM
  8. dgelerin's Avatar
    How do I do that?
    12-10-2018 04:16 PM
  9. dgelerin's Avatar
    I often clear the cache by going through settings to storage, etc. Is that the same thing?
    12-10-2018 04:22 PM
  10. hallux's Avatar
    Well, that seems to be one way - https://devicehelp.boostmobile.com/d...sung_Galaxy_J7

    Here's the method mentioned by @Rukbat - https://support.t-mobile.com/docs/DOC-30305

    I realize the docs are from different carriers, and may not even be YOUR carrier, but the process is going to be the same.
    12-10-2018 05:58 PM

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