First of all, in one case, you can communicate with your sister and ask her why she uses your avatar, and explain that it may cause confusion or problems.
On the other hand, if this is a misunderstanding, you can solve it through consultation and ask her to change her avatar or apply for an ID card again.
If your sister insists on using your avatar, you can consider the following steps:
① Consultation with relevant departments: contact the local public security bureau or household registration management department, explain the situation to them and seek their advice and guidance.
(2) Provide certification materials: prepare identification documents, relationship certificates and other materials for you and your sister, so as to prove your true identity and relationship to the relevant departments.
Seek legal aid: If the problem cannot be solved, you can consult a lawyer and seek legal aid to ensure that your rights and interests are protected.
If you are just not careful:
Contact the local public security bureau or household registration management department: explain the situation to them and ask how to change my sister's ID card avatar. Prepare relevant certification materials: you need to provide the relevant departments with your and your sister's identity documents, relationship certificates and other materials to prove your true identity and relationship. Submit application: fill in the application form and submit the required materials according to the requirements of relevant departments. Waiting for processing: once the application is submitted, you need to wait patiently for the relevant departments to handle it. The processing time may vary from region to region, so please be patient. Verify information: During the processing, relevant departments may contact you to verify information or request supplementary materials. Please cooperate in time and provide the required information. Reissue a new ID card: Once the replacement is successful, you can go to the relevant department to apply for your sister's new ID card.