It is reported by South Korea media that there are over 4,000,000
Samsung Galaxy S4 have been sale around the world. There is no doubt that Samsung Galaxy S4 is the most popular Android phone in the world, (not "one of" the most popular).
Today, I want to said some techs in Android device!
For most of Android phone users, when they get the new gadget, they would like to root their phone as soon as possible. Rooting can free the phone, after rooting, you can clean the useless apps which have been installed in factory, and you can custom your phone OS. However, rooting will make your phone be under bigger danger. Anyway, the pro of rooting is more than cons. Let's know how to root Samsung Galaxy S4!!!
Preparation for Samsung Galaxy S4 rooting
Of course, we need some tools to root our S4, but the first headwork for rooting is backing up your phone data. Although rooting won't wipe data from phone, but some accidents happen when rooting is running, our phone OS may crashed. So it is necessary to backup Samsung Galaxy S4 data such as photos, contacts, text messages, videos, call history, apps, and so on. If data loss, you need to do greater effort to
recover lost data from Samsung Galaxy S4.
On the other hands, you need to sure that you havre prepare well:
1. Your Samsung Galaxy S4(i9500)
2.Cofface’s CWM Recovery & Root(
dowload here)
3.At least 50% battery remaining on your device
4.Odin3 Flash Utility (
download here)
5.Samsung Android USB driver for your Galaxy S4 (
Download here）
(Announcement: I won't take any responsibility for any damage to your device as a result of following these instructions, you have to be at your own risk for rooting.) Root Samsung Galaxy S4 Step by Step
Step 1: Dowload all the necessary tools, and install odin3 and driver to your computer.
Step 2: Launch Odin 3 in your computer, and connect your phone in dowdload mode. Here you need to do combined operation to make your phone in download mode. Firstly, power off your device, plug USB cable to your computer, hold down the Volume Up + Down at the same time, plug in the USB cable to your S4 while still holding down the volume buttons.
Step 3: after step 2, if you do the right operation, the Odin tool will detect your phone. The you can see some option in the right of Odin3. Under PDA, select the cofface_samsungI9500_recovery_en_0503.tar file to flash the recovery, which will later be used to root the device. Make sure that Re-Partition is unchecked, and don’t touch any other setting. Hit the Start button to begin flashing the new PDA.
Step 4: Once the flash is complete, the phone will reboot. Wait for boot to complete, and then power it back off. And Reboot the phone into CWM recovery that you just installed by pressing and holding Volume Up + Home buttons whilst powering on the device.
Step 5: In the CWM mode, you can see a "root your phone" option, just choose it and follow the guides to complete rooting.
Step 6:Reboot your device once again, and you will have the Super User app installed on your Galaxy S4 GT-I9500. Please ensure to not update the su binaries after this.
All of rooting Samsung Galaxy S4 have been done . Good luck!
Know how to recover data from Samsung Galaxy S4 here, if you lost data after rooting:
http://www.any-data-recovery.com/topics/mobile-devices/recover-samsung-galaxy.html (Halloween Promotion coupon code for Tenorshare Android Data Recovery:
TENO-LQLR-MLAO, 30% discount
Soures :
http://www.redmondpie.com/root-galaxy-s4-gt-i9500-on-android-4.2.2-how-to-tutorial/ 
