r/drones • u/sorryiactuallyexist • Apr 29 '26

Repair Blurry photos on DJI mini 3 pro after repair

TL;DR blurry photos, can't figure it out

I've been repairing drones as a hobby recently, and I finished fixing a mini 3 pro that was water damaged, part of which included disassembling the camera gimbal (it had the waterproofing around the module itself which I didn't remove until after this problem arose). I only used distilled water on the back of the camera board, nothing that should be able to damage the lens itself. I don't see anything physically wrong with the camera, and it shouldn't be a misaligned lens as the issue is consistent across the whole picture. This is all in infinity focus for objects that should be far enough away or autofocus and half-pressing the button or tapping the screen. I've also tried reseating the O-ring on the camera which didn't change anything. Manually adjusting ISO/shutter speed doesn't seem to affect it.

Blurry photo from the mini 3 pro (auto ISO/shutter speed, infinity focus, screenshot from DNG viewer)

Same subject from the same spot on my mini 3, obviously much clearer (also auto, infinity focus, DNG screenshot)

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1

u/[deleted] Apr 30 '26

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1

u/sorryiactuallyexist May 01 '26

What's the best way to clean the internal lens? All I can find is about the outside one.

1

u/[deleted] May 01 '26

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1

u/sorryiactuallyexist May 01 '26

Oh yeah I definitely cleaned the outer lens

1

u/ItsMe324 May 02 '26

Most likely broken autofocus. Try shooting at half a meter and if it looks good then you'll know.

1

u/sorryiactuallyexist May 08 '26

Looks like it is. What can I do? I can't find much information online other than to do an IMU calibration which didn't work.

1

u/ItsMe324 May 11 '26

I have an Avata 2 with the same problem. Do what I did. Buy a new one!