[Easiest Way] Downgrade/Upgrade, Change ROM to WW/TW/CN Zenfone


[Easiest Way] Downgrade/Upgrade, Change ROM to WW/TW/CN Zenfone
Resources:
Tutorial:

Downgrade/Upgrade :
  1. Download ADB and Extract it, Download Intel Driver and Install
  2. Download Recovery for Downgrade or Upgrade (In this tutorial i'll downgrade my zenfone 5 from 1.18 to 1.17) so i'll download 1.17.40.16_ww_recovery.img
  3. Download Zenfone Firmware (in This tutorial i'll downgrade my zenfone 5 from 1.18 to 1.17) so i'll download UL_ASUS_T00F_WW_1_17_40_16.zip
  4. Copy recovery img (1.17.40.16_ww_recovery.img) to ADB Folder and Copy .zip firmware to ADB folder too (see image below).
  5. Activate USB Debugging on Your Zenfone and Connect it to PC/Laptop via USB Cable (How to Activate USB Debugging? HERE)
  6. Open CMD at ADB Folder by Hold Shift+Right Click and Open Command Window Here
  7. Type this on Command Window: adb reboot bootloader and wait until your zenfone enter fastboot mode
  8. When succeed enter fastboot then flash recovery, at Command Prompt type: fastboot flash recovery <filename.img> and wait until finish
  9. Choose Recovery, when android robot appear press volume down+volume up and choose update from ADB. Now Flash the firmware via ADB, by type ADB sideload <firmwarename.zip>
  10.  Wipe Data and Reboot
  11. Result
     
     
    Change Firmware: 
    1. In this tutorial i'll change from ww to tw
    2. Download TW/CN/WW Recovery img
    3. Download Firmware/ROM WW/CN/TW
    4. Copy Recovery img and Firmware to ADB Folder
    5. Activate USB Debugging on Your Zenfone and Connect it to PC/Laptop via USB Cable (How to Activate USB Debugging? HERE)
    6. Open CMD at ADB Folder by Hold Shift+Right Click and Open Command Window Here
    7. Type this on Command Window: adb reboot bootloader and wait until your zenfone enter fastboot mode
    8. When succeed enter fastboot then flash recovery, at Command Prompt type: fastboot flash recovery <filename.img> and wait until finish
    9. Choose Recovery, when android robot appear press volume down+volume up and choose update from ADB. Now Flash the firmware via ADB, by type ADB sideload <firmwarename.zip>
    10. Wipe Data and Reboot
    11. Result
    [Easiest Way] Downgrade/Upgrade, Change ROM to WW/TW/CN Zenfone