• wiktor
• 1 day ago
• Categories: Asus
• Categories: Zenfone 3 ZE552KL
• Free: Free warranty check

1. Turn off the phone by pressing and holding the Power key.

2. Next, press and hold Volume Up and Power button for a moment.

3. Asus Zenfone logo will appear on screen. When it does, let go of held keys.
4. Your device is now in Fastboot mode. Superb.


5. Navigate this mode using Volume Keys; select options with Power button.