This feature enables you to securely store your private data in a protected location accessible only by you.
Here's how to activate the secure locker on Huawei Nova 2i:
Step 1: Access security settings.

Step 2: Enter to activate the secure locker.
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Step 3: Select to create the secure locker from device memory or memory card.
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Step 4: After setting a secure lock password for the locker, you can choose to add additional data to store in it.
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That concludes the setup, wishing you all success.
