Build and Run on Android not working

Hello everyone,

I'm new to building Unity on Android and I've been spending days without finding any solutions to my problem. I'm currently using Unity 5.3.2f1

When I click build and run on Android in the build settings, everything progresses normally. But when I open my app on my phone, I only see a black screen for 2-3 seconds without any error message before it closes. However, if I build it on PC, I can run it as it's supposed to. To make sure, I have tried 4 different Unity projects either self-made or demo examples which all showed the same thing, a black screen and return. I also downloaded Unity Remote, which still runs perfectly when I play the games/projects on Unity. I have a Samsung Galaxy and I've followed all the steps regarding linking Unity to SDK, JRE, changing the player settings, etc. with no luck. I have also updated SDK tools, changed the package name, turned on/off development build as well without any difference.

I'll greatly appreciate it if someone can help me solve this problem! Thanks so much in advance and please let me know if I should provide further information.