What's wrong with the blur of mobile phone selfie?

First of all, the front camera pixels of mobile phones are generally lower than the rear camera, which is the main reason. Secondly, most front cameras can't focus, and they can't take clear photos. If the phone configuration is high, it is still unclear. The solution is as follows:

Try to wipe the front camera with a dry cloth to check whether there is a film covering the front camera. If yes, take it off and observe whether the photo is normal. Adjust the resolution of the mobile phone camera; Attempt to reset camera parameters; Try to change to a location with better light.