Xiaomi Redmi Note 9
Android 10.0
Select help topic
1. Find "Privacy"
Press Settings.
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Press Passwords & security.
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Press Privacy.
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2. Turn use of PIN on or off
Press the required SIM.
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Press the indicator next to "Lock SIM card" to turn the function on or off.
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Key in your PIN and press OK. The default PIN is 0000.
If an incorrect PIN is entered three times in a row, your SIM will be blocked. To unblock your SIM, you'll need to key in your PUK. The PUK can be obtained by contacting customer services. Please note: If you key in the wrong PUK ten times in a row, your SIM will be blocked permanently. In this case, you need a new SIM from Lebara.
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0000
3. Return to the home screen
Press the Home key to return to the home screen.
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