Votes:
What are these?
Battery Whitelisting and App Locking are special steps required by the Carv app on certain Android devices to work around some fairly aggressive battery saving techniques that certain phone manufacturers use.
Quick links:
Battery Whitelist
App locking
Which phones need this?
This is a non-exhaustive list of devices. If you are operating on a different model but are having any issues with run detection we recommend that you enable Battery Whitelist and App Locking.
- Huawei P20 Pro - Battery Whitelist
- OnePlus 5T - Battery Whitelist & App lock
- Oppo A9 - Battery Whitelist & App lock
- Oppo AX7 - Battery Whitelist & App lock
- Oppo Find X2 Lite - Battery Whitelist & App lock
- Oppo Reno Z - Battery Whitelist & App lock
- Realme X2 Pro - Battery Whitelist & App lock
- Samsung Galaxy Note 10 - Battery Whitelist
- Xiaomi Poco F1 - Battery Whitelist & App lock
- Xiaomi Mi 9 - Battery Whitelist & App lock
- Xiaomi Mi 8 - Battery Whitelist & App lock
Battery Whitelist
The Android battery optimisation settings can sometimes infringe on Carv’s ability to connect to GPS signals, causing gaps or inaccuracies in the data from your run. They can also cause the Carv app to be killed in the background which will stop it from recording your runs.
The Carv app has a "Battery whitelist" option in the Settings screen. This will allow Carv to be excluded from your phone's battery optimisation settings.
To access this head to the Carv app and then select: More > Settings > Battery whitelist > Toggle ON
If you cannot see the Battery Whitelist option, ensure that you have the latest version of the Carv app.
App Locking
For some Android devices, you have the option to "Lock" your app. This prevents your device from automatically closing the Carv app, which will interrupt your run tracking. Please see below for how to lock your app on different Android models.
Samsung Devices
- Open the multitasking pane, otherwise known as 'app switcher'.
- Tap the Carv app logo top center, and select 'Keep open'.
- Please note that depending on the version of Android, it may also be called 'lock the app'.
See below for an example of this process:

OnePlus Devices
To lock the Carv app on a OnePlus device with Android version 9:
- Go to your recent apps screen, also known as the overview screen. You can normally access this either by swiping up or by selecting the square in the bottom right-hand corner of your screen.
- Once there, depending on your model, you will either need to select three dots in the top right-hand corner followed by "Lock" or alternatively there will be a padlock icon in the top right-hand corner which you can select.
See below for an example of this process:

To lock the Carv app on an OnePlus device with Android version 10:
- Go to your recent apps screen, also known as the overview screen. You can access this by selecting the small square in the bottom right-hand corner of the screen.
- Once there, press and hold the app and select ‘Lock’ from the pop-up menu.
See below for an example of this process:

Oppo Devices
To lock the Carv app on an Oppo device:
- Go to your recent apps screen, also known as the overview screen. You can normally access this either by swiping up or by selecting the square in the bottom left-hand corner of your screen.
- Once there, pull down on the Carv app and select the "Lock" icon.
See below for examples of this process:

Xiaomi Devices
To lock the Carv app on a Xiamoi device with a MIUI operating system:
- Go to your recent apps screen, also known as the overview screen. You can access this by selecting the square at the bottom right of your screen.
- Once there, press and hold the Carv app and then tap the lock symbol.
See below for an example of this process:

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