Asus Zenfone 5 Kitkat Update and Troubleshooting


About ASUS Zenfone 5 Kitkat OTA update

An easiest way to update ASUS Zenfone 5 is trough OTA update, an official firmware from ASUS, go to Settings > About Phone > System update.
It will give a notification if new firmware is available, just tap to update.

In some case you don`t receive a notification that a new firmware is available, it probably because SKU and Firmware is different.

Manualy ASUS Zenfone 5 Kitkat Update

Failed OTA update then do manually, Update Asus Zenfone 5 manually to Kitkat

Preparation before Update ASUS Zenfone 5 to Kitkat

  • Make sure that your device still using default Firmware
  • Make sure you battery is more than enough until update complete
  • If update using OTA, make sure you have stable connection
  • Make a backup!
  • To keep your device rooted then run RootZenFone > Preserve Root before update

Asus Zenfone 5 Update Troubleshooting

error “assert failed ..bla..bla..blaa.. fota_return_code 403 bla bla”
When your ROM is already modify, this error will appear. Installed Xposed, install Viper, delete default apps, etc is count as ROM modification.
Solution: Reset / flashing to Stock ROM

Error : assert failed getprop( “” )== “WW”
The problem came from SKU, check your Firmware & SKU

Error : assert failed: apply_patch_check (“/system/bin/vold”…
Maybe you has been install something that make changing in /system/bin/vold.
Solution: Run root explorer and go to /system/bin/ find void.bak or void.backup or void.orig rename become void (delete void file before rename backup file)

Error : assert failed: apply_patch_check (“/system/bin/app_process”…
Installed Xpose Framework make /system/bin/app_process changed.

  • Uninstall Xpose Framework then restart your device
  • Run root explorer go to /system/bin/ find app_process.bak or app_process.backup or app_process.orig rename become app_process (delete app_process before rename backup file)

Keyboard is gone after update to kitkat
In some case, Asus is remove Google Keyboard
Solution: Download or use other keyboard application from Playstore

Unroot ASUS Zenfone 5
Maybe you forgot to Preserve Root before update firmware.
Solution: Root ASUS Zenfone 5 Kitkat

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