If you want to tailor this guide to your exact situation, let me know: Is your phone currently or stuck in a bootloop ? Which regional SKU (WW, US, CN) does your device use? Do you have ADB tools installed on your computer already? Share public link
Before diving into the firmware, it helps to understand the device itself. The Asus ZenFone Selfie, released on August 27, 2015, targeted users who loved mobile photography. It originally shipped with . The model number Z00UD is one of the variants of the wider ZD551KL model. The device is powered by a Qualcomm Snapdragon 616 processor, includes 3GB of RAM, and offers 16GB or 32GB of internal storage expandable via microSD. Over time, the device was officially updated to Android 6.0.1 Marshmallow, which is the focus of this article.
Aggressive standby power management that puts background processes to sleep when the phone sits stationary, heavily extending battery longevity.
: Use a strong Wi-Fi connection if you are downloading the update directly to the phone . Method 1: Automatic Over-the-Air (OTA) Update This is the safest and easiest way to reach Android 6.0.1. Open Settings . Scroll down and tap About . Tap System Update . Select Check Update .
) remains a beloved device for photography enthusiasts looking for a budget-friendly selfie camera. While it launched with Android 5.0 Lollipop, the Asus Zenfone Selfie Z00UD firmware 6.0 1 (Marshmallow) asus zenfone selfie z00ud firmware 6.0 1
: A highlight of the Asus update was the removal of over 10 pre-installed apps, including Asus Backup , freeing up internal storage and improving system speed. Installation and Technical Details
Upgrading from Android 5.0 (Lollipop) to brings tangible benefits:
: Place the firmware file on a microSD card. Reboot the phone into Recovery Mode and select Apply update from SD card Optimization
: Introduces real-time, low-power sleep states when the handset is stationary, drastically reducing the standby drain on the device's 3000mAh battery. 2. Essential Firmware Details & Prerequisites If you want to tailor this guide to
Unplug any cables and reboot your phone. Once the device boots up, a triangular warning icon will appear in your notification bar stating . Tap this notification, confirm the package selection, and let the system execute the automated installation process. Method 2: Sideload via Stock Recovery (For Bootloop Fixes) ZenFone Selfie Go to product viewer dialog for this item.
: Tap the notification and follow the on-screen prompts. The phone will reboot and begin the Marshmallow installation . How to Exit Fastboot Mode on ASUS Smartphone
: Use a certified high-speed Micro-USB cable and a clean MicroSD card formatted to FAT32. Step-by-Step Installation Methods Method 1: Local Internal Storage Sideload (Easiest)
: After installation, the device will restart and optimize apps, which may take several minutes. Important Precautions Step-by-Step Upgrading Share public link Before diving into the firmware,
Removes apps like ASUS Backup, Google Play Books/Games/Newsstand, and ZenFlash to free up internal memory. New Integrations:
: Before updating, it is recommended to charge the battery to at least
Download the correct zip file package directly from the official ASUS Support Center using your model moniker .