Database Users

[Q] cant uninstall gltools

So I installed gltools and went through the whole process but then wiped my phone a week later forgetting to unisntall gltools first and now whenever I click uninstall in app it does not remove it. It only restarts the phone but nothing changes. Any ideas on how to uninstall it. Im running stock rom rooted using the towel method.

SuperSU not oppening from app drawer

When i open SuperSU up, the screen goes black, but i can still go back to my home screen form there. When i go into the other root apps it says "waiting for root permission" for all of them. I haven't rebooted yet because i'm scared something will mess up and i might get stuck into bootloader.
Help?
I've noticed this when i went to turn Pry-Fi off. It said "waiting for root permission" for a long time. I went into the SuperSU app to find out it wasnt opening properly.
T-Mobile Variant Galaxy S5

Restoring System Apps without root.

Okay I ran into a weird problem which I can't fix on my own, so I hope you guys can help me there.
I own a Stock non rooted SM-N910F 5.1.1!
Now to the problem, the last Facebook update bugged the app somehow for me. (Forceclose on startup) So I deleted the last updates through the app manager and tried to reinstall the updates through the market. Got a strange 505 error. Now the strange stuff happened. The Facebook app wasn't to be seen anywere else in the app drawer, as if the botched reinstall deleted the system app.
The market says I don't have FB installed and when I try I get the same 505 error.
I downloaded the facebook apk from a mirror and installed it via ADB so I can get a more detailed error message. I got the: INSTALL_FAILED_CONFLICTING_PROVIDER as far as I know this means some leftovers of the system app are still installed which prevents the new install?
So what to do? I really can't root because of work policies.
Is there a way to flash the original firmware with Odin without loosing my data or tripping knox? (Like with the Nexus Toolkit for Nexus devices?)

I can't install anything out of playstore

Hi everone. I have a samsung galaxy on7 with root and twrp. I used to install any app that I want, but last week I just get this message for ever app that I try install: "App not installed". When I try install this same app through the playstore I get normal. I'm wait for anyone that can help me.
*The "unknown sources" is checked. I tried freeze playservice and failed in install apps too. I tried install any app like gmail, chrome, everthing and shows the same message.

make it stock
Flash it to stock and everything works well. Had same issue and stock rom fixed it.dont flash gapps.

Cant remove gos even with root (+ Second gos?)

Today i rooted my phone with the sole purpose of removing gos completely and being done with it. I installed an "app uninstaller" and with the root privilage i managed to remove gos BUT THEN, another gos came, this one didnt have the normal gos logo but instead had some sort of android logo and the app name was "com.samsung.android.game.gos.app.App" and this is unremovable even with the app.
At this point i try ADB and when i try to uninstall gos "pm uninstall bla bla com.samsung.android.game.gos", it gives me the "Success" and in the app i literally see the "com.samsung.android.game.gos.app.App" gets reinstalled, the moment i tried to uninstall it. I am at a loss. Anybody have any ideas?