We just wrote about how to unlock bootloader on Nexus 7. Now, what do we do after unlocking the bootloader? Obviously, flash a custom recovery on your Nexus 7 tablet and root it on Android 4.1.
The procedure is easy to perform and if you have been rooting Galaxy Nexus or Nexus S phones, then this one is no different and you should have no difficulties. Let’s get on with the tutorial now.
Disclaimer: All the tools, mods or ROMs mentioned below belong to their respective owners/developers. We (TeamAndroid.com) or the developers are not to be held responsible if you damage or brick your device. We don’t have you on gun point to try out this tutorial 😉
Make sure you have installed all your USB drivers for the Nexus 7 tablet to connect it with the computer. Download Nexus 7 USB drivers! Apart from just the USB drivers, there are a few more things that you need to take care of.
1. You need to enable USB debugging mode. This helps to connect your Android phone with the PC. See here: How to Enable USB Debugging.
2. Your phone battery should be 80-85% charged. If your phone goes off suddenly because of battery, during flashing ROMs or installing mods and updates — your phone might go dead permanently. See here: How to Check Battery Percentage.
3. Backup all your important data that you might need as soon as your flash a new ROM, unlock bootloader or make a backup for just in case, you never know when anything might go wrong. See below on how to backup data:
- Backup your SMS messages. How? –> How to Backup/Restore SMS Messages.
- Backup Contacts, Gmail and Google Data. How? –> Sync with Google Sync.
- Backup Call History. How? –> How to Backup Call History.
- Backup WhatsApp Messages. How? –> How to Backup/Restore WhatsApp Messages.
- Backup APN Settings: GPRS, 3G, MMS Settings.
4. Copy all the backup files from your SD card to your computer as internal memory will be wiped clean after unlocking the bootloader.
5. Your bootloader should be unlocked. See here: How to unlock bootloader on Nexus 7.
Now, let’s proceed with the tutorial below to root Nexus 7 bootloader.
How to Flash CWM Recovery & Root Nexus 7 on Android 4.1
Step 1 – Download Android SDK from the Android Developers website and install with USB drivers.
Step 2 – Enable USB Debugging mode in your Nexus 7 tablet.
Step 3 – Download Fastboot and extract it in android-sdk-windows\platform-tools directory. Create directory if not already there.
NOTE: Skip Steps 1, 2, 3 if you already have them.
Step 4 – Download JB-SuperSU.zip and copy it to your \sdcard on your Nexus 7 tablet.
Step 5 – Make sure you have backup your data as it will be removed. Then switch off your Nexus 7.
Step 6 – Download CWM-grouper-recovery.img and copy/paste it in the android-sdk-windows\platform-tools directory.
Step 7 – Now go into Fastboot Mode on Nexus 7. How? Press Volume Down + Power keys for a few seconds till you see some text on the screen. This is bootloader mode.
Step 8 – Navigate to android-sdk-windows\platform-tools directory and open Command Prompt (Shift + Right-click > Open Command Prompt).
Step 9 – Type in the following command and press Enter.
fastboot flash recovery CWM-grouper-recovery.img
Step 10 – Once completed, choose RECOVERY from the Fastboot menu and enter Recovery Mode.
Step 11 – Then scroll down to “flash zip from SD card” and press the power button to select it.
Step 12 – Press the power button again and select “choose zip from sdcard”.
Step 13 –Now using your volume keys, navigate to the JB-SuperSU.zip file that you copied to your SD card and select it using the power button. Confirm the installation on the next screen and the installation procedure should start now.
Step 14 – After the installation completes, go to “+++++Go Back” and reboot the phone by selecting “reboot system now” from the recovery menu. The phone will boot now.
That’s it. Your Nexus 7 is now rooted on Android 4.1 and has a custom CWM recovery installed.