I am the owner of a Logitech c930e webcam. This morning I turned it on and the images looked like it was a PCB printed on the sensor. So I am here asking to anyone that know something about this phenomenon if it is actually completely unfixable or if I can do something to get the right image again.
I finally solved the problem. I opened up the webcam cause I was curious at that point and a tiny plastic pin dropped out. It could happend since sometimes there are some plastic scratces due to the plastic piercings that were not complitely cleand out. Anyhow I reached the PCB itself where the lens is mounted on the CMOS sensor and I noticed that on the back of the lens mount ther was a tiny hole. So, a little inspection and I understood wath happend. The lens mount consist of 2 screws that keep it align orizzontally and 2 plastic pins inserted in the PCB (just for safety I think). One of those plastic pins was damaged in the production and today it dropped out from his little housing allowing the light to come throught. A little piece of insulating tape on the hole and the 'PCB artifacts' were gone. Thanks everyone for the support!