This Marshmallow ROM, Android 6 for Nexus 4 is brought to you by Dmitry Grinberg. Google is not supporting Android 6.0 Marshmallow for Nexus 4 and hence this is an unofficial build.
Installing custom ROM requires a custom recovery to be installed on your device, which may VOID your warranty and may delete all your data. Before proceeding further you may consider backup your all data. Please visit the Disclaimer page below to agree with the risks involved and proceed before flashing this ROM to your phone:
ROM Disclaimer link
Recommended files for Android 6 for Nexus 4 ROM installation:
Flashing guide of Android 6 for nexus 4:
Copy the ROM zip and the GApps zip file to your internal memory (By using a USB cable or via adb push command).
Reboot into recovery by pressing key combination or type the following command if you are on a PC:
$ adb reboot recovery
Wipe Data/Factory Reset
Format /system and then Format Cache partition
This step may delete all your data.
Consider backup your data out of your phone.
Data Backup guide
Select the Install Zip from SDcard option.
Select the ROM zip file where you have kept in the SD card and do the same for GApps also.
Enjoy the Android 6 experience on your beautiful Nexus 4 and stay tuned to InfySim Tech for more of such latest ROMs and other updates.