You can't be illiterate if you lose your ID card.

If you lose your ID card and can't read, you need to fill in some basic information for confirmation, but don't worry, you can still go through the relevant formalities at the local police station. You can ask the staff for help. They can explain the necessary procedures and forms for you and help you fill in the necessary information. At the same time, you can also get help through some channels, such as seeking the help of family or friends, or consulting the local community service center.