The phone consumes extra data

Applicable products: Smartphone
Applicable products:
The phone consumes extra data

Mobile data records listed on the bill from the user's carrier do not appear in Optimizer

If the phone is connected to a 4G or 5G network, a small amount of data may be used when you power on or off your phone, switch between 3G and 4G (5G) networks, or turn on or off Airplane mode on your phone. If you are using the primary SIM card when the data is consumed, it is recommended that you search for and access Airplane mode in Settings, then disable Mobile network and Enable 4G.

 
  • Your carrier will charge you for this data, but it will not be listed in Phone Manager.
  • For detailed information about the consumed data, consult your carrier and ask for a detailed mobile data usage record.

Optimizer shows that an app denied access to Internet consumes data

Even though an app has been denied access to Internet (by going to Optimizer > Mobile data > Networked apps), Optimizer shows that this app still consumes data. This is because some system services need to use mobile data anyway to work properly, even though you have disabled Mobile data and Background data.

Mobile data is used even though the phone is connected to a Wi-Fi network

This may be because you have enabled Wi-Fi+ or Network Acceleration, or are using some special apps (such as WeChat and QQ). For details, refer to My phone still consumes mobile data when connected to a Wi-Fi network .

The secondary SIM card is consuming data

Once the secondary SIM card is registered on the 4G network, it will consume a small amount of data even though Mobile data is disabled as the network will send some special data packs to the card, or when the card receives MMS messages.

To resolve the issue, do the following:

  1. It is recommended that you disable the 4G function for the secondary SIM card: Open Settings, search for Dual SIM settings/SIM card management, and disable Dual SIM 4G and Internet access during calls/Switch data connection during calls/Smart Data Switch.
  2. If you do not want the secondary SIM card to consume data when receiving MMS messages, perform the following:
    1. Deny the Internet access permission for Messaging. To do so, go to Optimizer > Mobile data > Networked apps > System apps, find Messaging, and turn off the Mobile data switch for it.
    2. Contact your carrier to cancel the MMS service.
  3. You can also contact your carrier to deny Internet access for the secondary SIM card.

For detailed information about the consumed data, contact your carrier for a detailed mobile data usage record that will contain the websites or IP addresses responsible for the data consumption.

Data consumption of your system account mainly occurs under the following scenarios:

The phone system is consuming data

Operations such as updating the database will consume mobile data. You can perform the following:

  1. In Optimizer, set Update number database to Wi-Fi only:
    • EMUI 9.X or later, and Magic UI 3.X: Go to Optimizer > Blocked, touch in the upper right corner, and set Update number database to Wi-Fi only.
    • EMUI 8.X or earlier: Go to Phone Manager > Blocked > Settings and set Auto-update identification database to Wi-Fi only.
  2. Open Optimizer, touch in the upper right corner, and go to Online virus scan/Auto-update cleanup database > WLAN only.

    Alternatively, go to Virus scan > Settings, then set VIRUS LIBRARY to Only update over Wi-Fi.

  3. Revoke the Internet access permission for apps that you don't use often.

    To do so, open Settings, search for and access Apps, touch an app you do not use frequently, touch Data usage and disable Mobile data under NETWORK ACCESS.

Exchange email is consuming data

After you clear the cache data of Exchange email, your phone will send update requests to the Exchange server again, which will consume data. You can go to Optimizer > Mobile data > Networked apps and deny the Internet access permission for the app.

Pre-installed app is consuming data

Each Huawei phone is strictly inspected before delivery to make sure that it does not contain any malicious software that may deduct fees, use mobile data, or collect user data without authorization.

Please check if your phone has been tampered with by a third-party app. Make sure you purchase Huawei phones from an official channel.

Apps not installed on your phone are consuming mobile data

The way the data usage is calculated by the carrier and on the phone are different.

  • On the mobile phone, the data usage is calculated by app process ID (i.e., app name).
  • For the carrier, the data usage is calculated based on the IP address that sends the mobile data request, which does not completely match the apps on your phone. Some data usage cannot be traced to any apps, such as CMNET data, standard data, and IP data consumption.

You can also compare the data usage records displayed in Optimizer with that displayed on the bills from the carrier. If the difference is reasonable, the data usage statistics is normal.

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