1. AC Question's Avatar
    My Samsung Galaxy S5 Sprint (carrier unlocked) with Android 6.0.1 has suddenly been acting weird. The screen and graphics are flickering and jumping about the LCD screen. Once it even turned the screen negative with black and orange colors. I manually went to accessibility settings and enabled negative colors so that the screen went to normal. …That is until it again went negative and I had to turn off negative colors afterward. I don't know what is causing this and I want to badly fix it.
    Specifications:
    Android Version: 6.0.1 from Lollipop
    Rooted: Yes (probably since it had SuperSU already installed when I got it)

    Now I haven't Factory Reset it yet because I fear that resetting it to factory default while it is rooted might break it. I don't know how to unroot it either. I will be helpful knowing if I can safely reset it with it still rooted.

    Edit: I also want to say that whenever I try to share my PC internet connection to the phone, the phone somehow manages to crash my PC every time. I can find no fix for any of these problems. I am so helpless and hopeless…
    07-16-2017 04:12 AM
  2. Rukbat's Avatar
    1. SuperSU is just the app that controls which apps can get root access, it's the "su binary" that actually gives it to them, so someone could have installed SuperSU without rooting the phone. (In other words, the fact that SuperSU is installed isn't proof that the phone has ever been rooted. Looking in /data, and seeing folders for many apps, would be.)

    2. Factory resetting a rooted phone won't cause problems, it just deletes anything added to the phone since it left the factory. (So if it's rooted, it might uninstall SuperSU, but installing it from Google Play would fix that.)

    3. It really sounds to me as if there's a problem in the screen somewhere, possibly in the touch screen layer. And most likely from moisture. If you've ever had the phone in an air conditioned place, then went outside when it was in the 90s and felt like you were breathing water, the moisture would get into the phone (vapor gets into waterproof spaces, so a water-resistant phone won't prevent that), condense and you'd have water damage (which - and some people are shocked by this in a "water-resistant" phone - isn't covered under the warranty.

    Your best bet is to bring it into a company-owned Sprint store (most of them are franchises) and see if they can do anything cheaper than an S5 in good-to-excellent condition on Swappa would cost. Replacing the entire screen (if that's the problem) or the motherboard (if that's the problem) would probably be more expensive than replacing the phone.
    07-16-2017 05:24 PM

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