How to root the Nexus 5?
What precautions to take? I have never tried it before.
Also suggest me what type of back up I should perform before rooting.
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Easy Way to Root Nexus 5 If you want to get root access on your Nexus 5 with simple steps, refer to the one click solution - iRoot. It offers two versions for rooting, which means you can root your Nexus 5 without PC as well. Before using iRoot to root your phone, unlock the bootloader on Nexus 5 at first.
Remember that unlocking the bootloader will factory reset your Nexus 5. So please back up your data in your Nexus 5 before doing this.
After unlocking the bootloader on your device, move to the steps on how to root Nexus 5. Here we take the iRoot PC version for example: Step 1. Make sure your phone has USB Debugging Mode enabled in Developer Options. If not, please go to Settings -> About Phone and tap Build Number until the notification that Developer Options have been enabled pops up. Then back out a step and you can see it at the bottom of your Settings menu.
Step 2. Make sure you have installed Nexus 5 USB Drivers on your PC.
Step 3. Ensure your Nexus 5 battery is charged to at least 85%.
Step 4. Download iRoot PC version on your computer. Connect your Nexus 5 to your PC.
Step 5. iRoot wll detect your device automatically. After detecting, click “Root”.
Step 6. Now your Nexus 5 should be rooted already.
Note: You can also root Nexus 5 without computer with iRoot apk. Just download the apk version directly on your Nexus 5. Or download on your PC, and drag it into your Nexus 5.