Thanks A LOT to XDA X8 FORUM.
First you need to download this Flashtool application :
1. Flashtool V.2.9.1 Free Download Here =D [password : thanks]
2. Install it to your PC.
3. You should have this folder at your PC after your have install it.
4. Install driver for your phone.
-1st Install ggsetup-18.104.22.168.0 [blue box]
-2nd Extract X8_ADB_Drivers [red box]
5. Run Flashtool.
What Flashtool Do?
- Flash new/latest Firmwares. For X8 latest firmware is X8_2.1.1 (2.1.1.C.0.0) Free Download Here =D [password : thanks]
[after finish download > extract > you should get ftf file > put ftf file to firmwares folder]
- Flash custom kernel [Special for those have done Unlock Bootloader =D]
- Root your phone
- Install X-recovery.
- Install Busybox.
- Install / Uninstall apk files.
|Select your Device|
|Click Root To Root your device|
[your phone should reboot after rooted]
|ftf files in firmwares folder|
|Phone in Flash mode|
[Off phone > hold back > connect to PC]
|Flash ftf files|
This method is very useful for anyone have brick phone =D
It easy, fast, you can play with your phone. =D