Answer :
If the smartphone gets locked accidentally due to the wrong password the step to unlock it is to wait for it gets unlocked automatically.
What is a smartphone?
A smartphone is a mobile handset that is capable of making calls, and messages and is able to download large files at the same time.
The smartphone includes voice navigation, internet searches, and many more. If the smartphone gets locked then you should wait for the phone to lock itself as it needs some time duration.
Find out more information about the smartphone.
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