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How to Update Zenfone 5 in [WW/ TW] Lollipop Firmware

Tutorial - How to Update ASUS Zenfone 5 in Lollipop firmware. Recently ASUS release there latest firmware for Zenfone 5 A500CG and A5001CG device model. Your device must run on firmware before updating. Otherwise System Update can be fail. In preview Post we talk about How to Root Zenfone 5 in Lollipop Latest firmware.

What's New in

  • Improved SIM network stability
  • Improved and FIX power saving mode
  • Improved video Performance
  • Update Google Security Policy
  • Improved 3G network Connectivity

How to Update firmware in Zenfone 5

Step 1. Download Firmware
First Download firmware according to your device SKU. for example if your device running on WW SKU you have to download WW sku firmware from end of post.

Step 2. Copy Zip file in your Device
After Download, Connect your zenfone with PC using Data cable and Copy firmware zip file in device internal storage.

Step 3. System Update Notification
Now disconnect your zenfone, you will see a System update file detected notification. Just tap on it. Then select update package and press OK button then again press OK button to start.
Update Zenfone 5 in [WW/ TW] Lollipop Firmware

Step 4. Successfully System Update
After Press OK button It will reboot and Start Install System Update file on your device. It can be take 15 - 20 minutes to complete.

Download here
TW Firmware -
WW Firmware -

Congratulations, After its done you can use your device in update Firmware. You can also check out How to Install ZenMotion Wake/Sleep on Asus Zenfone 5 and Zenfone 6. Don't forget to Share this tutorial.


  1. I have a question. I have rooted zenfone 5 . Is the root acces will missing if I do this update?

    1. not sure, but maybe you have to root again your device

    2. Can we root latest firmware. 87 with same one click root?

  2. Hi,
    I have unrooted my phone and verified and tried installing, it throws below error,

    E:Footer is wrong
    E:Signature not verified

    Please advise..


  3. Can I downgrade this version with the older version of android? I don't pretty like it because my battery draining so fast using this kind of android. May I have the link for android KitKat firmware? I don't find the right firmware. Thank you.

    1. You can use WW- Or WW- firmware zip file and flash it with ADB fastboot Tool

  4. Im using ww firmware .. why my baseband and imei is gone .. im follow to your step :(

  5. No notification pleae help? I already placed the zip file in the iternal storage but theres no notification pleaee help?

  6. hey um when i try to update it does not want to update it shows no command when it reboots


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