How to Unbrick your Zenfone

Yesterday accidentally my zenfone 5 was bricked when i tried to update to kitkat, it's shown only USB logo. Don't panic i use this method to Unbrick My Device. You must know your current build .

Resources:
USB Driver for Android ( Download Here )ADB Fastboot Tool (Download Here)Recovery IMG (Recovery version must be rlier then your current. Download) Zenfone Firmware (Download From Website, and Put it in the same folder with adb fastboot tools) Zenfone 5 Zenfone 6 (Select OS Android and Choose Your zenfone Model, the version must be lower than your current version)Instructions:
In this Tutorial, My current version is WW2.19.40.6 and i have WW1.17.40.6 Full firmware in My computer so i download WW1.17.40.6 recovery imgInstall USB Driver and Extract ADB DriverCopy Recovery img to ADB FolderExtract downloaded WW1.17.40.6 Firmware and Copy to Adb FolderWhen USB logoPress Power+Volume up will enter droid modeConnect Zenfone with USB Cable to Computer/LaptopOpen ADB Folder and Open Command Prompt (Shift + right Click > Open Command Here)When at Droidboot Type: fastboot flash recovery <filename.img> in this tutorial i type:
fastboot flash recovery 1.17.40.16_22_recovery.imgchoose Recovery at Droidboot when android robot appr press volume down+volume up and Choose update from ADBType in CMD: adb sideload <firmwarename.zip> and wait until complete
Wipe Cache and Data (Tutorial Here)RebootPS: if you can't enter Recovery you can try This Tutorial or Flashtool or Go to Service Center