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EBay sellers have some equipment that is offered "just for parts", so it might be worth a check. If you did find a broken item, you could harvest extra screws for the future.
...I have a D3 that's kicked the bucket, I'll check and see.
It sounds like the screws (or at least one) have been compromised. Removing it now, taking it to a specialty shop like fastenal, and replacing both of them would be good insurance. A much better deal than flooding it in the middle of a dive.
For that matter, $25 is pretty cheap compared to a flooded computer.
What's your time worth to you? Tear the screws out, hit a store or two trying to find them, drive home and fix it, maybe. Couple hours at least. I am worth more than $12 an hour. But that is just me.
Put there is more to it. The right tool for the right job. Do you have an inch pound torque driver? Without it and the proper spec you risk damage to the new screws or the threads in the body. And now the time to dollar ratio is out the window.
Finally, if it fails mid dive, you lose the dive(s) that day ($50-100+) the travel, ect. That $25 plus shipping just became the deal if the century.
Just wanted to offer another view point. Hope it helps.
It might, I'll dig up my D3 and see. FYI, Suunto is having their trade in /trade up special on right now......also, we just got a bunch of the new Aqua Lung wrist op computers (RGBM algorithm) similar to the D4 but around $200.Does the back of D3 have similar 2 screws like the ones on D4? I looked through the internet webpages, I saw what D3 front face look like, but none shown the back side.