- Aug 30, 2015
- 140
- 25
I bought 4x Dahua HDW4421C on Aliexpress, unfortunatelly one camera has an image defect:

I removed the main metal cover, and tried to clear outside of the lens, no effect. So it must be either something inside of the lens, or on the CCD chip itself. I do not see anything there, but perhaps it is so tiny that I don't see it.
Have you ever seen something like that? Could you help me to fix it somehow, or what do you suggest?
Sending it back to China would be almost as pricey as the camera itself, so I would prefer some other solution... I could also just leave it be and install it on a place where it would not matter, but I would prefer fixing it.
By the way, that's what happen when you people start recommending Dahua instead of Hikvision

I removed the main metal cover, and tried to clear outside of the lens, no effect. So it must be either something inside of the lens, or on the CCD chip itself. I do not see anything there, but perhaps it is so tiny that I don't see it.
Have you ever seen something like that? Could you help me to fix it somehow, or what do you suggest?
Sending it back to China would be almost as pricey as the camera itself, so I would prefer some other solution... I could also just leave it be and install it on a place where it would not matter, but I would prefer fixing it.
By the way, that's what happen when you people start recommending Dahua instead of Hikvision

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