Troubleshooting Softbrick and Update Asus Zenfone 2 (ZE551ML) to Android Marshmallow

Troubleshooting Softbrick and Update Asus Zenfone 2 (ZE551ML) to Android Marshmallow

Still warm the last few weeks, finally Asus Zenfone 2 is getting an update to Android 6.0.1 Marshmallow. Update to the latest Android did make some changes and there are new features. In this article there will be a tutorial how to update to Android Asus Zenfone 2 official Marshmallow from ASUS. So no need to worry, because it is stable and minimal bugs. In this article will help you overcome fails to boot, softbrick and how to update to the official ROM for those who are already using a custom ROM like CM13 in its Asus Zenfone 2.

Preparation :

1. Make sure the battery is above 70%

2. Backup internal data storage, SMS and make sure it is in sync with your Google account.

3. Download ASUS FlashTool (+ Driver)

4. Download RAW ASUSfirmware version of Android Lollipop WW_Z551ML_2.20.40.194.20160713.raw. File size: 1.33 GB

5. Download Official Android Marshmallow ASUS firmware version 6.0.1 ASUS 4.21.40.134 through the Official website or through the mirror this link (Google Drive). File name: UL-Z00A-WW-4.21.40.134-user.zip. Size: 1.2 GB.

6. Download ASUS Driver (optional)

7. Download ADB Installer1.4.3 (optional)

Troubleshooting Tutorial Softbrick and Update Asus Zenfone 2 (ZE551ML)

If you are on the custom ROM like CM13 or experiencing bootloop / her softbrick Asus Zenfone 2, can follow the steps below:

1. Install ASUS Flash Tool on your Windows PC. In the application is also already available drivers. Install the driver. If you are having problems can use ASUS or ADB Driver Installer.

2. Open the ASUS Flash Tool.

3. Connect Asus Zenfone 2 via a data cable to the PC.

4. Select the mode MTP (Media Transfer File) then Allow USB Debugging PC on Asus Zenfone 2. For those not enable USB debugging on the Developers Option. How to click Settings> About> Software Information> Tap repeatedly on the Build number.

5. Flash Tool will be detected ASUS USB connection with the USB icon colored green. If not detected, check back to drivers.

6. Furthermore, on the models, change to ZE551ML.

7. On the Options Wide Data, if Yes will erase all data including the internal storage. If you select No, it does not delete the data included Internal Storage. If the data comes Operekers custom ROM like CM13 and the like is strongly recommended Data Wipe select the option "Yes". Ensure internal storage already terbackup!

8. Next click the brown cardboard logo, click the logo and select the firmware file that you have downloaded RAW format. filename: WW_Z551ML_2.20.40.194.20160713.raw

9. Click the Start button to start

10. Wait until the process is complete and do not unplug the data if the process is still running!

For the experienced softbrick / bootloop and can not enter the homescreen. For ASUS flashing RAW files in Flash Tool can go into fastboot mode. The way the power off Asus Zenfone 2. Wait for a while until the device has actually been powered off. Press the Power button and Volume UP, if it vibrates and into the ASUS logo off the power button just press Volume UP button. Once entered into the fastboot mode, follow the steps above flashing.

Asus Zenfone Update to Android 6.0.1 Marshmallow

If you are finished flashing to the last version of Android Lollipop 2.20.40.194, the next step is to update to Android Marshmallow ASUS official version 4.21.40.134 Here are the steps:

1. Make sure the battery is above 70%

2 If you downloaded through the Google Drive Rename the file UL_Z00A_WW_4_21_40_134_user.zip be UL-Z00A-WW-4.21.40.134-user.zip. For a download from the official website of ASUS does not need to change the name.

3 Connect ASUS via a data cable to the PC.

4 Copy the firmware file to Internal Storage

5 Remove the data cable at the Asus Zenfone 2.

6 The device will find renewal system updates are available.

7 If you have not found an update, restart the device.

8 Select the update package UL-Z00A-WW-4.21.40.134-user, and then click OK

9 Asus Zenfone 2 will restart and perform the update, wait until the update process is complete.

10 The update will take a long time, about 20 minutes late. Be patient.

11 If the update process is completed will go to the homescreen. Happy now Asus Zenfone 2 you can enjoy Android 6.0.1 Marshmallow.

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Troubleshooting Softbrick and Update Asus Zenfone 2 (ZE551ML) to Android Marshmallow

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