Not rooted after having a pass result using Odin 3

Hi XDA! Please help me with my problem. I'm a newbie in rooting my android. So after I followed instructions in rooting my S6 Edge SM-G925F with the 5.1.1 version of the android using Odin3, SU app is not installed after finishing the steps. but the red seandroid kernel letters are showing at the top of the samsung logo.
:confused:

Flashed HTC One M8 Stock Recovery, Updates Result In Red Exclamation Mark

Hello! This is my first post here, mostly driven by my need to download a patch for Stagefright.

My bootloader is unlocked and I am rooted. I was running TWRP up until now, but I want to patch stagefright so I decided to re-flash the stock recovery. Now, whenever I allow my phone to update, it goes straight to a red exclamation mark inside a triangle.

Firstly, I have an AT&T HTC One M8. Here is what fastboot says:

S-ON
HBOOT: 3.19.0.0000
Radio: 4.0.U60511@50319A
OpenDSP: v47.2.-00564-M8974_F0.1024

My OS and other software versions are

Android 5.0.2

HTC Sense: 6.0

Software: 4.28.502.1

HTC SDK API level: 6.55

Kernel Version: 3.4.0

Baseband Version: 4.0.U605611

Build Number: 4.28.502.1 CL51189 release-keys

I would greatly appreciate your assistance. As it stands, I am very stressed out.

Flashed HTC One M8 Stock Recovery, Updates Result In Red Exclamation Mark

Hello! This is my first post here, mostly driven by my need to download a patch for Stagefright.

My bootloader is unlocked and I am rooted. I was running TWRP up until now, but I want to patch stagefright so I decided to re-flash the stock recovery. Now, whenever I allow my phone to update, it goes straight to a red exclamation mark inside a triangle.

Firstly, I have an AT&T HTC One M8. Here is what fastboot says:

S-ON
HBOOT: 3.19.0.0000
Radio: 4.0.U60511@50319A
OpenDSP: v47.2.-00564-M8974_F0.1024

My OS and other software versions are

Android 5.0.2

HTC Sense: 6.0

Software: 4.28.502.1

HTC SDK API level: 6.55

Kernel Version: 3.4.0

Baseband Version: 4.0.U605611

Build Number: 4.28.502.1 CL51189 release-keys

I would greatly appreciate your assistance. As it stands, I am very stressed out.