Today, we got great news for LG Nexus 5 users. Now, latest Android 7.1.2 Nougat CosmicOS custom firmware is available for download for LG Nexus 5device users. An easy way to update to this amazing firmware is via the official build of CosmicOS. It is reliable and fast. The best thing is that CosmicOS is pretty famous among Android users.

It offers amazing customization options, it is stable and comes with several new features to further enhance your phone experience. Since it is not officially announced by LG, there is a slight chance that you might come across some bugs, but with the official Nougat 7.1.2 features it still wont be too bad of a deal.

You may also read: How to install Android O OPP4 Developer Preview 4 Factory Image on Nexus 5X


You need to make a backup of your data, as they will have to clear your phone’s memory in order to install Android 7.1.2 on your phone. Kindly note that this tutorial is only meant for LG Nexus 5.

  • Make sure that you have enabled the USB debugging mode. If it is disabled, your phone will not get connected to your PC.
  • Another important thing to do is to download and install the latest USB drivers of LG Nexus 5 on your computer.
  • The bootloader of your phone should be unlocked.
  • The phone should be rooted and it should have the latest Custom Recovery installed on it.
  • Make sure that the battery of your phone is above 80%.
Files that you will have to download include:

Complete Instructions:

Step 1: Download Google Apps along with Android 7.1.2 Nougat CosmicOS ROM on your PC and extract these files too.

Step 2: Connect your phone to your PC in order to mount its memory. Make sure that you are using the original data cable.

You may also read: How to install Android 7.1.2 Nougat Euclidean Os on LG Nexus 5

Step 3:  Copy the files that you downloaded in the first step, make sure that these files are placed directly in the memory and not in any folder.

Step 4: Disconnect your phone, turn it off and switch back on into the recovery mode. To enter this mode, you have to press and hold the power keys along with the volume down button.

Step 5: Once in the TWPR mode, tap “wipe” button to erase all data from your device, then go down and tap “swipe to the factory reset” option. 

Step 6: To flash the ROM, you have to head back to the main menu, tap on install option and then search for the ROM zip file that you have copied to your phone’s memory. Select it, tap on the confirmation button to proceed on with the installation process.

Step 7: Repeat Step 6 to install Google Apps on your phone.

Step 8:  Once the installation process is completed, you should reboot your phone by going to ‘+++++Go Back+++++’ and selecting ‘reboot system now.’.

That is it! You are done, enjoy the latest Android on your LG Nexus 5 device. 

You may also read: How to Root Nexus 5X on Android 7.1.2 N2G47O Nougat Firmware


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