The Android 5.1 Lollipop update is here, and the factory image is up for the Nexus 5. If you've got a Nexus 5 and a few minutes to spare, you can flash the latest version of Lollipop on on your Nexus 5 in a jiffy. Here's how to get Android 5.1 Lollipop on the Nexus 5.
Note: Factory images are just what they sound like: a picture of the system as it comes out of the factory. That means no Candy Crush, none of your cute kitten pics, no music, no files, no accounts. So before you flash a factory image, make sure you have a full backup of your data or are OK with wiping it all.
- Download ADB Tools and unpack the zip file
- Download Android 5.1 factory image for Nexus 5 (hammerhead – LMY47D) - save it to the ADB Tools folder and unpack it too
- An unlocked bootloader
- USB Debugging enabled (instructions included in bootloader unlock tutorial linked above)
- Make sure you have Nexus 5 drivers installed on your computer
How to get Android 5.1 Lollipop on Nexus 5
- Turn your Nexus 5 off.
- Press and hold Power and Volume Down to restart your Nexus 5 in Fastboot mode.
- Connect your Nexus 5 to your computer with a USB cable.
- Open a Windows Explorer window and find the unpacked firmware you downloaded to the ADB Tools folder.
- Double click the flash-all.bat file and let it do its thing.
- Your Nexus 5 will reboot and be running Android 5.1 Lollipop.
TroubleshootingIf you have a problem before installation, make sure you have USB Debugging enabled and an unlocked bootloader as described in the linked guide above.
If you get stuck in a bootloop (your Nexus 5 sticks on the loading screen at startup), you can try to clear the cache partition first by going back to Fastboot and using the volume keys to enter Recovery Mode (use the Power button to confirm your selection). Once you've wiped the cache partition you can try to reboot.
If you still don't get past the boot screen, go back to Fastboot and select wipe data/factory reset and press the Power button to confirm. This should clear things right up.
Once your Nexus 5 reboots it should be running Android 5.1. You can then restore your apps and data from your backup.
How are you enjoying Android 5.1? What have you noticed so far?