Have you ever noticed a strange process in the list of applications on your Android smartphone com.android.carrierconfig? It has no icon and is not displayed in the application menu, but periodically appears in the task manager or system logs. What kind of app is this, why is it installed on your device without your knowledge, and most importantly, can it be removed without breaking the smartphone?

This system component is closely related to the operation of mobile communications, but its purpose remains a mystery to most users. In some cases carrierconfig may cause errors, increased battery consumption, or network connection problems. In this article, we will analyze in detail what is hidden behind this name, how it affects your smartphone, and what to do if problems occur.

Spoiler: you should not just remove this component - it is critical for the correct operation of the SIM card and the mobile data. But there are ways to optimize its operation or reinstall the configuration if something went wrong.

What is com.android.carrierconfig and why do you need it?

com.android.carrierconfig is an Android system application that stores and manages configuration files of mobile operators (carrier configurations). These files contain the settings necessary for correct operation:

  • 📶 Mobile network connections (2G/3G/4G/5G, roaming, frequency priorities)
  • 📞 Calls and SMS (VoLTE, ViLTE settings, IMS parameters)
  • 🌐 mobile data (APN, data transfer protocols, speed limits)
  • 🔄 Automatic updates (receiving new settings from the operator without manual input)

Without this component, your smartphone would not be able to automatically connect to the network operator after installing the SIM card. Previously, users had to manually enter APN (access point) settings, MMS and other settings. Now carrierconfig does this automatically, downloading current data from Google servers or directly from the mobile operator.

It is important to understand that this is not a separate applicationa part of the Android system software, integrated into the services com.android.phone and Telephony Framework. It works in the background and does not have a graphical interface.

📊 Have you ever encountered mobile network problems on Android?
Yes, often
Sometimes
No, everything works stable
I don’t know, I didn’t pay attention

How carrierconfig works: technical details

Operator configuration files are stored in a special format .xml and loaded onto the device in several ways:

  1. Pre-loading — smartphone manufacturer (Samsung, Xiaomi, Google etc.) includes basic settings for popular operators in the firmware.
  2. Automatic update —Android periodically checks Google servers for new versions of configurations for your operator and region.
  3. Manual update —the operator can send new settings via SMS (so called OTA configurations).

The files are stored in a protected system folder: 

/data/user_de/0/com.android.carrierconfig/files/configs/

They cannot be edited without root access, since they are digitally signed by the operator or Google.

When you insert a SIM card, the system reads its identifier (MCC-MNC) and loads the corresponding configuration file. For example, for MTS Russia this will be a file with identifier 250-01, and for Vodafone Germany - 262-02.

What are MCC and MNC?

MCC (Mobile Country Code) is the country code (for example, 250 for Russia), and MNC (Mobile Network Code) is the operator code (for example, 01 for MTS, 02 for MegaFon). Together they form a unique network identifier, by which Android selects the necessary settings.

Is it possible to delete com.android.carrierconfig?

Short answer: technically it is possible, but this will lead to a complete loss of mobile communications, including calls, SMS and mobile data. The system will not be able to detect operator settings, and you will have to manually configure APN, network parameters and other critical parameters - which is extremely inconvenient and fraught with errors.

However, there are situations when users try to get rid of from this component:

  • 🔋 Increased battery consumption — if the process com.android.carrierconfig constantly hangs in the task manager and consumes resources.
  • 🐌 System slowdown —in rare cases, errors in configuration files can cause lags.
  • 🚫 Connection errors - if the smartphone cannot connect to the network despite the correct SIM card.

Instead of deleting, it is better to try the following methods:

Clear the application cache in the settings

Reset the network settings to factory settings

Update the configuration manually via ##4636##

Reflash the smartphone while saving the data -->

⚠️ Attention: If you do delete com.android.carrierconfig via ADB or root, you can only restore it by flashing the device or manually installing an APK (which requires in-depth knowledge and can compromise system stability).

Common com.android.carrierconfig errors and how to fix them

If this component does not work correctly, you may encounter the following problems:

Symptom Possible reason Solution
No mobile data ("!" icon next to the network indicator) Corrupted APN file or outdated operator settings Reset network settings in Settings → System → Reset → Reset mobile network
Constant reconnections to the network (4G→3G→4G) Configuration conflict when roaming or error in the operator file Manually select a network in Settings → Mobile network → Network operators
Error "Not registered in the network" when making calls Incorrect IMS or VoLTE settings Disable VoLTE in the SIM card settings or update firmware
High battery consumption due to carrierconfig Cyclic reboot of configurations or update error Clear application data in Settings → Applications → Show system → Carrier Config

For diagnostics, you can use the hidden Android menu:

  1. Open the application Phone and enter the code: ##4636##.
  2. Go to the tab Phone information.
  3. Check the fields Operator settings i Network status. If there are errors, the problem is in the configurations.
💡

If after resetting the settings the mobile network has not been restored, try inserting the SIM card into another smartphone, wait for automatic setup, and then return it back. Sometimes this helps to “wake up” the process of updating configurations.

How to update operator configurations manually

If automatic updates do not work, you can try to force update the settings:

Method 1: Through the engineering settings menu

  1. Enter in the phone application code: ##4636##.
  2. Select Phone information.
  3. Click on the three dots in the upper right corner and select Update configuration.
  4. Wait 1-2 minutes and reboot smartphone.

Method 2: Through the SIM card settings

  • Go to Settings → Mobile network → Access point name (APN).
  • Click on the three dots and select Reset to default values.
  • Save changes and reboot the device.

Method 3: Through the operator's application

Many operators (for example, MTS, Beeline, Tele2) offer official applications for setting up the network. Install such an application, log in and follow the instructions for updating configurations.

⚠️ Attention: Details of the update process may vary depending on the Android version and operator policy. If after a manual update the problems persist, contact the support of your mobile provider - there may be temporary problems on their side.

CarrierConfig and root access: what can be done with superuser rights

If your smartphone has root access, you can interact more deeply with operator configuration files. However, this risky requires caution. Here's what you can do:

  • 📁 View current configuration files in the folder /data/user_de/0/com.android.carrierconfig/files/configs/ using Root Explorer.
  • 🔄 Delete damaged files (system will download them again the next time you connect to the network).
  • 📥 Install custom configurations (for example, for unofficial 5G support on older devices).

Example command for deleting configurations via ADB (requires root):

adb shell

su


rm -rf /data/user_de/0/com.android.carrierconfig/files/configs/*


reboot

Warning: Incorrect editing of files can lead to:

  • Loss of registration on the network.
  • Inability to make calls or use a phone Internet.
  • Cyclic reboot of the module Telephony.
💡

Unless absolutely necessary, do not edit configuration files manually. Even with root access, it is better to first create a backup copy of the folder /data/user_de/0/com.android.carrierconfig/.

Frequently asked questions about com.android.carrierconfig

Why does com.android.carrierconfig constantly run in the background and load the processor?

This can happen for three reasons:

  1. Update error —the system is unsuccessfully trying to download new configurations from Google servers. Solution: Clear cache and application data.
  2. SIM card conflict —If you have two SIM cards from different operators, the system may cycle between their settings. Solution: disconnect one of the SIM cards during diagnostics.
  3. Damaged firmware — if the problem appeared after updating Android, try rolling back to the previous version or reflash the device.
You can Is it possible to transfer configurations from one smartphone to another?

Technically yes, but it makes no sense. Configuration files are tied to:

  • Smartphone model (settings for Samsung Galaxy S23 may not be suitable for Xiaomi Redmi Note 12).
  • Android version (files for Android 13 are not compatible with Android 14).
  • Region and operator (the settings MTS Russia will not work for T-Mobile USA).

When transferring files manually, you risk getting registration errors on the network. It is better to wait for the automatic update on the new device.

How can I find out which version of carrierconfig is installed on my smartphone?

There are two ways:

Method 1: Through ADB

adb shell dumpsys carrier_config

In the output, find the line ConfigStore version.

Method 2: through the app Device Info (for example, AIDA64)

Open the section Telephony and find information about the operator configuration.

Is it true that carrierconfig spies on users?

No, it's a myth. com.android.carrierconfig does not collect personal data. Its only function is to store and update technical parameters for working with the mobile network. However:

  • The operator can can impose its services (for example, automatically set an APN for paid services).
  • Google may collect anonymous statistics about configuration versions to improve compatibility.

If you are concerned about privacy, disable the option in Android settings Automatically retrieve settings operator (usually located in Settings → Mobile network → Advanced).

Why is the mobile network not restored after resetting the settings?

This happens if:

  1. Google or operator servers are temporarily unavailable (try later).
  2. Your SIM card is outdated and does not support automatic configuration (contact your phone store for a replacement).
  3. The firmware does not contain basic configurations for your operator (relevant for custom firmware like LineageOS).

Solution: manually add the APN for your operator (the settings can be found on the official provider's website).