Flash Nexus 7 Factory Image from a Mac

Flash Nexus 7 Factory Image from a Mac

Priyank Sharma Tech 6 Comments

T his guide caters to those who got their Nexus 7 devices stuck on bootloop (like mine) while updating to the latest Android Marshmallow OTA update. Those wanting to simply flash a factory image can also use this guide. So let’s get started…

Please note that all data on the device will be lost. I do not take any responsibility whatsoever in the unlikely event that your device gets bricked. By following these instructions, you agree to take full responsibility of the consequences.

Step 1: Initial Setup

On your Mac, head into System Preferences and select Keyboard > Shortcuts > Services. Find the “New Terminal at Folder” in Services > Files and Folders and check the box. This enables us to launch Terminal in a specific folder.

System Preferences

Step 2: Download Files

Download the Nexus 7 System Image. File size should be around 502 MB.

Next, Download the ADB & Fastboot Files as well, which is a minuscule 575 KB.

Step 3: Terminal Setup

Connect your Nexus 7 via USB and extract the ADB & Fastboot Files archive, and navigate to the folder – in my case fastboot.

Extract files in the Nexus 7 System Image archive and place it in our fastboot folder. Open “flash-all.sh” in a text editor and add “./” before the term “fastboot” on lines 17, 18 and 20. This will ensure that Terminal executes files in the same folder.


Go one level up in the folder heirarchy, right-click on the fastboot folder and select “New Terminal at Folder”. This will launch Terminal for that folder.

New Terminal at Folder

Step 4: Installation

Start the device in fastboot mode: press and hold Volume Down + Power as the device begins booting up. Make sure your bootloader is unlocked. If not, type the below.

./fastboot oem unlock

Finally, type the below and you will see a percentage progress of your files being sent to your tablet. Now sit and wait while Marshmallow is being installed. The entire process will take anywhere from 5-10 minutes.


Your device will automatically reboot and you will be done.

Please note that the first boot can easily take over 7 minutes.

That’s it. You are done! Do share your feedback/experience in the comment section below.

About the Author

Priyank Sharma

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Trancer by passion. Designer by profession.

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Comments 6

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  1. Thanks for this. I can’t get mine to unlock:
    “sending ‘bootloader’ (2092 KB)…
    FAILED (remote: Bootloader is locked.)”
    But cheers anyway, is appreciated.

    1. Post

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