tutorial rooting with z4root

z4root is the standard ROOT applications for Android, basically running this application on the device for ROOT. Applications need to be rooting Superuser to function properly, to install it before installing z4root Superuser also this.
Analogues: Superuser similar to the Windows User Account Control (UAC) which prevents a program to change the operating system or setting a windows system by providing access rights to User2 ID who you defined in advance (To help protect your computer, you can create a user account standards for all users who share a computer. so when someone who has a standard account tries to install software, Windows will prompt the administrator account password so that a software can not be installed without the knowledge and permission of the account / user ID tSB),
and z4root as a tool that gives an account / ID UAC admin rights on the page, so that other programs can change settings on an operating system.

It is an app you install from the market or by side loading, that has a single button that will root your device.

How safe is this?

Should be 100% safe - nothing on disk is changed besides the root binaries, so if something goes wrong, simply rebooting the device should fix up any and all issues. Here is the list so far of known compatible and incompatible devices for the permanent root option. 
Compatible with PERMANENT root option

Samsung Galaxy S (All variants)
Backflip
Sony X10
Xperia Mini
Droid 2
Galaxy Tab
Galaxy I5700
Galaxy 3 I5800
Droid X
Samsung Acclaim
Cricket Huawei Ascend
Motorola Cliq
Huawei 8120
Hero
G1
Optimus T
Droid 1
Garmin Asus A50
Motorola Defy
LG Ally
Motorola Flipside
Motorola Milestone 2
Dell streak
X10 Mini Pro
Smartq v7 android 2.1

Incompatible with PERMANENT root option

Desire (requires nand unlock)
Desire HD (requires nand unlock)
Magic (unknown)
Evo (requires nand unlock)
G2 (requires nand unlock)
Archos 70 (unknown)
myTouch 3G (unknown)
Wildfire
Droid Incredible

First download z4root here, then save on your mobile phone.

check the option Unknown Sources at the check in settings -> Application settings

open z4root apk file, and then install.

open z4root, select Permanent Root.

Rooting process will be conducted by z4root. Let your mobile phone for several minutes until you restart your phone. If you freeze for more than 5 minutes, do not worry, unplug your battery, then repeat root process again.