The password is stored in your phone, and you do not have to enter it again while you are using the memory card on the same phone. If you want to use the memory card on another device, you are asked for the password.
To remove the password, select Options > Delete password.
Check memory consumption
Check the memory consumption of different data groups and the available memory to install new software on your memory card.
Select the memory card 
and Options > Details.
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