Nexus 5 is powered by a powerful Qualcomm Snapdragon 2.3GHz quad-core processor, 2GB of RAM and an Adreno 330 GPU. The 4.95″ True HD IPS Plus display has a resolution of 1080 x 1920, with a pixel density of 445 ppi. Storage comes in at either 16GB or 32GB. Other features include an 8MP camera, LTE connectivity and a 2300mAh battery.

All the Nexus devices released in or after 2013 have received Marshmallow support. Nexus 5 has also received Marshmallow. The latest version of Marshmallow is 6.0.1. If you are a Nexus 5 user and you are still waiting for Android 6.0.1 OTA, follow the below guide to install it manually.

Disclaimer: Follow the instructions at your own risk. The writer cannot be held responsible for any bricked or unusable devices. Even though the chances of your Smartphone getting bricked are negligible, the owner of the device must take full responsibility of it!

Pre-requisites and Backing up your device:

• Make a Backup of the SMSs, Call logs and Contacts using the Super Backup App
• Make a Backup of the data on your phone
• Enable USB debugging on your device
• Make sure the device has at least 60% charging
• Backup WhatsApp messages on Android and Email

Requirements:

• Drivers installed on the computer
• Android SDK installed on the computer
• ADB and Fastboot installed on the computer
• Android 6.0.1 Marshmallow

Steps:

1. Make sure Android SDK, ADB and Fastboot files are present in the same folder.
2. Download the system image file of your device and extract it to the folder in the above step.
3. First you will need to unlock the bootloader.
4. Switch off the device and reboot to fastboot mode.
5. Connect the device to PC. Open the command prompt in the SDK folder and type the following command
   fastboot oem unlock
6. Open a terminal and navigate to the unzipped system image directory.
7. Execute the flash-all script which installs the necessary bootloader, baseband firmware, and operating system.
8. Your device will reboot and you will see Android 6.0.1 Marshmallow.
9. If you want to lock the bootloader, follow steps 4 and 5 but this time enter the following command
   fastboot oem lock