ASUS ZENFON 4 2014 (A400CG) FIRMWARE

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Are you using an Acer smartphone or tablet? If yes, are you looking for a way to connect your device to the computer? If yes is your answer again, you are on the right page. Download Asus USB drivers from here (based on your model number), install it in your computer and connect Asus device with PC or Laptop successfully.

Since Asus doesn’t offer PC suite software, downloading and installing the USB driver on your computer is the only way to connect your Acer smartphone or tablet with your PC or Laptop computer.

Download :

• A400CG_debrick_secure
• A400CG_all_WW_user_V6.5.27
• A400CG_all_WW_user_V7.4.4

How to Upgrade :

• First you should check your build number.
• Go to Settings>>About phone(at bottom of the page)>>Build number 

Notes :

1. Please remember to back up your personal files before you update the new operating system.
2. Please strictly follow the instruction to update new operating system.
3. If some issue happens, you can contact local after-sales service center to get help.