How to flash Asus ZenFone 2 (ZE551ML, ZE550ML, ZE500CL)


How to flash Asus ZenFone 2

Instructions firmware smartphone (or how to flash) Asus ZenFone 2 (ZE551ML, ZE550ML, ZE500CL)  to a new version of the operating system Android, as well as getting Root (superuser) on Asus ZenFone 2 (ZE551ML, ZE550ML, ZE500CL)

If the text and screenshots are not the same – not “swear” (text editing a lot easier than making a new screen. Do not pay attention as on the version of the recovery.

The first thing you need to download to your PC all you need. Program proshivator Fastboot, driver communication with a PC the smartphone itself firmware, all packed into one archive

Drivers can also download:   ZE551MLZE550MLZE500CL

Zenfone 2 Android 5.1 Phone W

On the PC, anywhere, and dump the folder where all the files. Ultimately, the folder must have a similar appearance.


Install all the drivers on your PC, carry out the installation as an administrator.
And now I come to the direct process of phone firmware Asus ZenFone 2. To this end, turn off the phone and turn it into a flashing mode (recovery), turn hold the Power + Volume Up, dual vibration after release Power, continuing to hold Volume Up until you see the image of the robot.

Asus ZenFone 2 boot

Connect your phone to a PC using the included USB cable.
1. Open a command prompt on your computer. Go to the folder where the unzipped file, press Shift and right mouse button – Open a command window
2. Next sews in our custom smartphone recovery – the command line, enter fastboot flash recovery recovery.img

Asus ZenFone 2 fastboot

3. After the firmware select Recovery volume buttons

Asus ZenFone 2 - recovery mode

Push the power button. We are waiting for 5-10 seconds. When the first robot – are waiting. How will a small robot

– Enter the recovery –
to keep the Power button + volume up short press
should be so –

ZenFone 2 recovery

4. Once we got into the custom (and now mostly) recovery do “Factory Reset” then have to do a complete reset of the phone.

5. After resetting the phone, select the item –  apply Update from ADB, selection reaffirm the power button.
6. Next, enter on the PC at a command prompt –  ADB sideload – press Enter

After that, the process should start flashing smartphone Asus ZenFone 2.
Firmware put considerable time, about 10-13 minutes. After flashing press Reboot.
Phone will reboot with the new firmware, usually the first load schanimaet longer.

Getting to the root Asus ZenFone 2 (ZE551ML)

Firmware fully sink, added only root.

1. Download and install the driver for your phone and ADB (see. Above)
Download the pre-root system.img
Download the FLASHTOOL (see. above)

Zenfone 2 Android 5.1 Phone W

2. Go to the settings in the phone-referencing information about the software and click on the Build number, until Your Message that you’re a developer))

3. Next Settings-developers put a tick USB debugging

4. Extract flashtool and put it in the same folder as the system.img

5. enters BOOTLOADER

6. In the folder where lies flashtool holding Shift click the right mouse button and select “Open command window.”

7. Enter the command: fastboot flash system.img

8. We look forward to yet established IMG.

8. Reboot your phone after you download will phone root. After the update OTA root disappear.

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