Blu R2 PLUS User Manual page 40

Password: Use password to unlock the screen
Fingerprint: Use fingerprint to unlock the screen
You may stop the security feature at any time.
Set up SIM card PIN lock
SIM card PIN (Personal Identification Number) is used to prevent unauthorized
use of SIM card.
To change a blocked PIN code, you will need to unlock the SIM lock then go to the Change
Password screen. The phone will automatically prompt you enter the old PIN code and ask
to enter a new PIN code twice. The phone will then prompt you that the change was
successful. If you enter the PIN incorrectly three times, the SIM and PIN codes will be
automatically locked. You will need the PUK code to unlock the phone which is available
through your service provider. If you enter the PUK code incorrectly 10 times, the SIM card
will be permanently locked. Please see your service provider for a new SIM card.
Password visible – Make the password visible when it's typed.
Use security credentials - Allow applications to visit security credentials or other
credentials.
Accounts
Add accounts,include Exchange、Google、IMAP、Personal(IMAP)、
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