My phone was lost and found again. Is there any way to know if it has been opened by someone? Ask for a master.

If there is facial recognition, it will generally not be opened. As long as all your information is still there, check your wallet balance and details. If it is correct, it has not been opened. If there is facial recognition, it will not be opened. You must ask the customer service of the mobile phone manufacturer to find out. If there is facial recognition anywhere, it will generally not be opened. As long as all your information is still there, check your wallet balance and details. If it is correct, it has not been opened. For facial recognition, you must ask the mobile phone manufacturer's customer service to decode it. There will be decoding of the person's personal information, such as an ID card. If you don't have an ID card, the customer service will not decode it. There will be the decryptor's personal information, such as an ID card. Customer service will not decode it without an ID card.