To unlock your phone, you need to go to a customer service center.
Most phones nowadays use full disk encryption, which has been supported since Android 5.0. Full disk encryption uses a single key to protect the entire user data partition of the device. At boot time, users must provide their credentials before they can access any part of the disk.
While this type of encryption is great for ensuring security, it also means that when the device is rebooted, the user doesn't have immediate access to most of the phone's core features. Because the system cannot access the user's data due to the protection of this individual user credentials, features such as the alarm clock will not work, accessibility services will not be available, and the phone will not be able to answer calls.Android 9 introduces support for metadata encryption where hardware support exists.
Importance and application of cell phone encryption
Nowadays, cell phones are far more than just communication tools, containing a lot of personal information, such as contacts, text messages, social media, bank cards, and so on. Leakage of this personal information may bring serious consequences to users, so the application of encryption technology has become particularly important.
The application of cell phone encryption technology is also relatively wide, not only the information on personal cell phones needs to be encrypted, but also the information on cell phones in enterprises needs to be protected. For example, medical record information in hospitals and financial information in banks need to be encrypted.
The application of cell phone encryption technology has become an important means of protecting personal information and corporate secrets. People must recognize the importance of encryption technology for information security to protect the right to security from infringement. At the same time, it is also important to pay attention to the encryption process with the appropriate method of processing, the reasonable use of encryption technology to ensure the security of information.