January 6, 2024

What is RILNotifier? and Fix the Data Connection Problem?


The pre-installed apps on Android devices perform important functions like capturing photos, making calls, and email. They have unique IDs that help locate them easily.


For example, “com.android” is the ID for the Google app. Pre-loaded apps also add new features to Android.




In this guide, we’ll cover all the details about “RILNotifier and how to fix data connection issues” on Android devices.

What is RILNotifier?

In RILNotifier, RIL stands for “Radio Interface Layer” – the layer between radio hardware and Android’s telephone service. RIL depends on two components:

  • RIL Daemon: Low-level interface to a radio modem.
  • RIL Vendor: Vendor-specific implementation of RIL.

What is RILNotifier on Android Devices?

RILNotifier is a pre-loaded Android app that notifies other apps about network connection changes. For example, when you move from LTE to WiFi, RILNotifier informs all apps that the network has changed.

Not much else is publicly documented about RILNotifier by developers.

Key Features of RILNotifier

  • Lightweight Background App

One of the key advantages of RILNotifier is that it is an extremely lightweight background application on Android devices. It uses very minimal device resources including battery, RAM, CPU cycles, and mobile data. Typical resource consumption is less than 3MB RAM and 1% CPU usage even after extended periods of running in the background.

  • Gets Notified When Network Changes

The primary functionality of RILNotifier is to get notified by the Android framework whenever an internal change related to mobile networks occurs. For example, it gets notified when the device switches from 4G to 3G or vice versa. It also gets notified when mobile data gets enabled/disabled or airplane mode gets turned on or off.

  • Sends Broadcast to Inform Other Apps

After RILNotifier receives any notification about network changes, it further broadcasts this information system-wide to all applications running on the device. This broadcasted intent can then be tapped into by interested apps to upgrade themselves based on updated network capabilities and conditions. For example, apps may choose to enable or disable certain features based on high/low bandwidth.

  • Allows Access to Device Storage

The RILNotifier app has been provided privilege by Android OS to access device storage including the SD card. It may use this access to read or write temporary operational data into storage as buffers. However, access is limited to only what is necessary for its core functionality.

  • No Access to Camera, Microphone, or Calls

Unlike some other system apps, Android does not provide RILNotifier any access or capabilities related to camera, microphone, or telephone calls. So users can rest assured that this app cannot exploit sensitive user data. Even its access to device storage is controlled.

Pros and Cons of RILNotifier App


  • Enhances connectivity
  • Assists smooth network switching
  • Essential for certain apps


  • Increased battery usage (rare)
  • Connectivity issues if removed
  • Lack of documentation

Battery Usage by RILNotifier

Some users report RILNotifier draining the battery. However, it’s a lightweight app that shouldn’t consume much power.

If the battery is still being used rapidly, consider force-stopping RILNotifier.

Is RILNotifier Safe?

Yes, RILNotifier is secure since it only broadcasts network changes. It runs in the background to fulfill this purpose.

RILNotifier cannot access sensitive components like camera, microphone, or call logs. It can only access device storage.

How to Fix “Unable to Establish a Wireless Data Connection” Error

Here are solutions to fix the “unable to establish a wireless data connection” error:

1. Toggle Mobile Data On/Off

Turn mobile data OFF and back ON. Also, reinsert the SIM card. This may resolve connectivity issues.

2. Update Preferred Roaming List (PRL)

Update PRL to get the latest roaming updates:

  • Go to Settings > System Update
  • Tap “Update PRL” if any update is available
  • Tap OK to confirm

3. Restart Android Device

Restarting takes only 1-2 minutes but often fixes many problems.

Press and hold the power button for a few seconds to see the restart option.

4. Disable RILNotifier Notifications

To disable RILNotifier notifications:

  1. Open Settings > Notifications
  2. Tap the menu (3 dots) in the top right corner
  3. Enable “Show system apps”
  4. Locate RILNotifier app
  5. Turn off the notifications toggle switch

This prevents unnecessary interruptions from RILNotifier.

Uninstalling RILNotifier – Steps

Note: Removing the RILNotifier may cause connectivity issues in Android.

To uninstall:

  • Root the device and use a system app uninstaller
  • Or use ADB on a computer – connect the device, enter ADB devices, then uninstall with package name com.sec.app.rilerrornotfier

Best Alternatives to RILNotifier

While not recommended, you can try replacing RILNotifier functionality with these apps:

  • Network Cell Info Lite – Light battery usage, shows network info
  • Network Signal Guru – Monitors signal strength
  • Network Monitor Mini – Compact network analytics
  • WaveUp Ril – Enhances network connectivity
  • RIL Info – Displays detailed RIL data
  • NetMon – Internet speed and usage tracker
  • Network Log – Logs various connectivity events
  • Ray RIL – All-in-one RIL assistant app
  • ATOZ RIL – RIL app with battery enhancements
  • RIL Spy – Advanced app to track RIL data

FAQs about RILNotifier:

  • Q1. What is RILNotifier used for?

RILNotifier broadcasts network changes to other apps in Android. It enables smooth transitions when switching networks.

  • Q2. Is disabling RILNotifier bad?

It’s not recommended as it can cause connectivity and roaming issues in Android. Limiting notifications is better.

  • Q3. Why is my RILNotifier battery drain high?

In rare cases, a bug may cause high usage. Try force-stopping the app first. If the issue continues, factory reset the device.

  • Q4. Should I delete the RILNotifier app?

No, as it’s a vital built-in Android service. Removing can affect performance. There are better alternatives to try first.

  • Q5. Is there an iPhone equivalent to RILNotifier?

Apple devices use the CoreTelephony framework for network reporting. There’s no direct RILNotifier equivalent on iOS.

Also Check:


In summary, RILNotifier App is an essential Android system app that enables network connectivity by notifying apps when connections change.

It’s lightweight, safe, and works silently in the background. While some users report battery drain issues, disabling notifications is better than removing them.

For Android data connectivity problems, toggling mobile data, updating the PRL list, restarting the device, or using RILNotifier alternatives may help.

I hope this guide gave you a detailed understanding of RILNotifier and how to go about fixing common data errors! Let me know if you have any other questions.

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