How to install Android Lollipop in Nexus 5: Step by step
Update: direct link for Nexus 5 lollipop final release:
Lollipop 5.0.1
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https://dl.google.com/dl/android/aosp...
Lollipop 5.0
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https://dl.google.com/dl/android/aosp...
MD5 checksum : 761667f1ddaf4e38d4792136df4ab927
Detailed video of installing Lollipop in Nexus 5.
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To flash a system image:
Backup all your data before proceeding for flashing, as this process will erase
all the data.
NOTE: I am not responsible if any thing goes wrong.
1) Download the appropriate system image for your device below, then unzip it to a safe directory. say "Android".
https://developers.google.com/android...
http://developer.android.com/preview/...
2) You will need the few Android platform tools which you can get from platform-tools directory of Android SDK, or I have zipped at below URL.
https://drive.google.com/file/d/0B2Vy...
3) Download the tools zip folder, unzip it and copy all the 4 file to Android folder where you have unzipped image of nexus 5.
4) Open CMD prompt and change directory to the Android image folder.
5) Connect your device to your computer over USB.Ensure that "USB debugging" is enabled from "Developer options" in Settings.
6) To check the connectivity between laptop and Nexus 5 use the below command to restart the device from cmd prompt
adb reboot
If this command reboots the device then every thing done till now is OK.
7) Start the device in fastboot mode with any one of the following (a or b) methods:
(a) Using the adb tool: With the device powered on, execute:
adb reboot bootloader
(b) Using a key combo:
Turn the device off, then turn it on and immediately hold down the relevant key combination for your device.
For example, to put a Nexus 5 ("hammerhead") into fastboot mode, press and hold Volume Up + Volume Down + Power as the device begins booting up.
8) If necessary, unlock the device's bootloader by running:
fastboot oem unlock
The target device will show you a confirmation screen. (This erases all data on the target device.)
9) Navigate to the Android directory where system image are unzipped.
10) Execute the flash-all.bat script. This script installs the necessary bootloader, baseband firmware(s), and operating system.
Once the script finishes, your device reboots. You should now lock the bootloader for security:
11) Start the device in fastboot mode again, as described above.
Execute:
adb reboot bootloader
fastboot oem lock
Note: Locking the bootloader does not wipe any data, but when you want to flash it again, you must run fastboot oem unlock again, which will wipe the data.