A few days ago, Google announced that the new Maintenance Release Android 5.1.0 Lollipop will roll out to Nexus devices, confirming the rumors that have been circulating in the past months. 5.0 Lollipop came in mid-November, and it was installed on all Nexus devices, but some problems appeared with the early adaptors, because of the glitches and WiFi connectivity issues.
After the release of 5.0 Lollipop, Google came with two stability firmware, 5.0.1 and 5.0.2, but the Nexus owners still reported problems. Also, Google’s original Equipment manufacturers, Motorola, HTC and Samsung, delayed the release of updates for the new OS and Sony preferred to wait until a stable version will be released, to install it on its devices.
The Android users have high expectations from the v5.1.0, which will fix many bugs and will come with new features such as HD voice-call in Nexus 6, only in the US; device protection which is actually the anti-theft feature and the Android One series smartphones and Moto G first generation and second generation, plus the Moto E first generation received multi-SIM compatibility.
Google will rollout the OTA update soon, but until then, you can keep a tab on update notifications. You’ll have to go to Settings >About Device>System Updates>Check Update Now.
Android 5.1.0 Lollipop, build number: LMY47D, received factory images for three Nexus devices: the Nexus 5 smartphone and the two tablets, Nexus 7, the 2012 WiFi variant, and the Nexus 10. These are the details of the updates:
LG Nexus 5 (Hammerhead) GSM/LTE md5 021fa0ed4946e0c7e70e39da301e5a34
Samsung Nexus 10 (Mantaray) Wi-Fi only md5 35b23c78db9a7eb043a0b1a76ee0874a
Asus Nexus 7 (2012 Nakasi) Wi-Fi Only md5 43a649017cc8a186d737d3288346d092.
These factory image files can be downloaded from trueandroid.com. Soon, the Nexus 9, 6, 4, Nexus 7 (2013 edition, WiFi aka Razor) and both Nexus 7 (2013 Razorg) and Nexus 7 (2012 Nakasig) will also get factory image files.
To install Android 5.1.0 Lollipop LMY47D Factory Image on Nexus 5, follow these simple steps: connect your smartphone to your computer using a USB cable, turn of fthe phone, boot into Fastboot or Bootloader Mode by pressing and holding Volume Up and Power button together until you’ll see the Fastboot menu and START on top. Then, extract the downloaded factory image on your PC and go to the folder named “hammerhead-LMY47D” and copy/paste all the files to your Fastboot directory. Now, if your computer is running on Windows, run the file “flash-all.bat”. If you have a Mac, run the file “flash-all.sh” using Terminal and if your device is running on Linux, run the file “flash-all.sh”.