Official Gapps For Android 4.1.1 Jellybean Flashable.zip 'link'

Ensure your ROM is indeed based on Android 4.1.1 or 4.1.2. Download Links for Official Jelly Bean GApps

The fundamental background engine supporting account authentication, location synchronization, and API integration.

Since OpenGApps doesn't support 4.1.1, you need to look for packages maintained by legacy enthusiasts.

You must prepare your device before you try to install the file. : Your phone must be rooted. Custom Recovery : You need TWRP or CWM recovery installed. Battery Charge : Charge your phone to at least 50 percent. Backup : Save your important data to a computer. Step-by-Step Installation Guide Follow these steps carefully to flash the file.

: Later, the Open GApps Project automated this by providing packages for every Android version, including legacy 4.1 builds, offering variants from "Pico" (just the Play Store) to "Super" (all Google apps). How to get the 4.1.1 Jelly Bean OTA Update - Galaxy Nexus

A custom recovery (TWRP 2.x/3.x or CWM 6.x) configured on the device.

If you are installing a new ROM and GApps for the first time, you must perform a clean wipe to prevent data corruption and boot loops. From your recovery's main menu:

Adds basic Google functionality like the "OK Google" search framework.