I root my phone but now Phone stuck at boot How to fix and how to root my phone properly

If you want to achieve more with your Android smart phone, you can act as the following steps to root your device.
Before rooting your Android smart phone, please:
1. Download CF-Root-SGS2_XW_INU_KL1-v5.0-CWM5.
2. Download Odin3v185.
Step 1: Download CF-Root-SGS2_XW_INU_KL1-v5.0-CWM5 and unzip it on your computer. Then press the "Volume Down" and "Home" buttons of your Android device at the same time for several seconds. So that your phone will be rebooted into "Download Mode".
Step 2. Connect your Android phone to computer via a USB cable. After that, extract Odin3v185 and check the "PDA" box. Double click the CF-Root-SGS2_XW_INU_KL1-v5.0-CWM5.tar, soon you can get a menu as shown.
In this step, please choose "Auto Reboot" and "F. Reset Time", then press the "Start" button to continue.
Step 3. Wait for a while. After getting a "Pass!" on your computer and "Turn off" on the Android phone, please disconnect your Android smart phone and computer.
Step 4. Press "Volume Up" and "Home" at the meantime to reboot your phone to the "Recovery Mode".
Step 5. Select "Wipe data/factory reset" and "Wipe Cache" step by step. At last, tap "Reboot System Now", your Android phone will be restarted at once.
You can work this Coolmuster Samsung Contacts Recovery software to restore lost contacts and text messages from your Android phone at will.

Simple Steps to Root Android Mobile Phone

Now your Rom is damaged. So you have to install Stock Rom. after that root..All Guide and required Files

Hi, this is simple error. here is step by step guide Could not do normal boot odin mode Error Fixed

Hi there.
Usually a Splash Screen loop indicates that the Phone's Software / OS is corrupt and therefore will not boot.
I recommend having the device reverted back to Stock. It is likely that the Root firmware was not compatible or the Flash process was done incorrectly.

If you are lucky enough to have not updated and are still on the VRUAMDK Build number then here is the root method (source & credit given to: http://forum.xda-developers.com/showthread.php?t=2290798):
STEP 1: Go to the source link above and download the five items in the first step, Samsung Official USB Drivers, ODIN v3.07, VRUAMD2 Prerelease Kernel, Stock VRUAMDK Kernel for your phone, and Motochopper Root Exploit Tool.
STEP 2: Boot your phone into ODIN mode.
STEP 3: Flash the VRUAMD2 Prerelease Kernel using ODIN v3.07 in PDA section only. Boot back into Android and verify that the flash was successful.
STEP 4: Follow Settings -> More -> About phone -> tap "Build number" 7 to unlock Developer options and verify in there that you have "USB debugging" checked and "Verify apps via USB" unchecked. Verify in Security setting on your device that you have "Unknown sources" checked and "Verify apps" unchecked
STEP 5: Connect your phone to your computer and open "Run.bat" file from the location you have extracted motochopper to. You will see a message on the phone asking you to accept the new computer connection (select to always allow and select OK).
STEP 6: After motochopper runs and your phone reboots on its own, check if SuperSU has any update in the Play Store. Open SuperSU app and let the binary update itself to the latest VERY IMPORTANT OR YOU WILL LOSE ROOT ON STEP 4. Now you can open a root application and verify that is able to access root properly.
STEP 7: Now to restore the stock kernel you need to boot your phone into ODIN mode (how-to link above).
STEP 8: Flash the Stock VRUAMDK Kernel using ODIN v3.07 in PDA section only (follow same link in step 3 for a how-to).
STEP 9: Boot back to Android and verifying everything is still working and kernel has flashed successfully. You should now be fully rooted and on the fully stock original firmware that came on your device.
To restore a custom recovery (optional), follow Step 5 on the source link.

It sounds like you have corrupt kernel files that allow the system to boot properly. if your phone just sits at the boot logo then something is corrupt. You will have to find the phones OS firmware file online, and put the phone into Disk Mode/Advanced Mode, and either find software you can access the firmware through on your computer, or you will need to take the working firmware file you find online, load it onto a micro SD card and then load the firmware onto the phone from there.

To access this mode (Disk Mode) on your phone do this:

1.Power off your phone
2.Press together volume up + home button (little house)+ power button
3.When Samsung logo appears releases your fingers from the buttons.
4. You will then see a list of options you can select, SD card boot, or SD card firmware upgrade or something along those lines.

From there you can load the proper working firmware to your phone from an SD card, or from the vendors software that can access the phone on a root level.



=============================================

If the above wasn't an issue, then you may just need to charge it fully and the boot, or leave it on your charger then boot up.

this is because your OS might have corupted you can flash your device, or if it is in warranty try take it to sevice center

ANDROID is not an application its new model of phones