Fastboot Mode ASUS Zenfone 3 Deluxe S821
How to enter fastboot mode on ASUS Zenfone 3 Deluxe S821? How to open fastboot mode in ASUS Zenfone 3 Deluxe S821? How to exit fastboot mode on ASUS Zenfone 3 Deluxe S821?
Check out how to get access to Android 6.0 Marshmallow hidden mode. Follow our steps and boot ASUS Zenfone 3 Deluxe S821 into fastboot mode.
Turn off your phone. In order to do that hold down Power button.
After a couple of seconds, press Power button.
Hold down Volume Up + Power button.
As soon as ASUS logo appears, release the buttons.
Congratulations! You are now in desired mode.
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