It’s not a generally safe or recommended repair. Community experience is mixed: some users report success cleaning the shutter-button/contact area with pure isopropyl alcohol or electrical contact cleaner, especially when contamination around the button was the cause. Others point out that putting liquid inside a camera is risky because it may not evaporate fully, could move debris deeper inside, or could turn a partly working camera into a dead one.

If contamination is the issue, the cleaner may dissolve or flush out skin flakes, dust, or residue from the button/contact mechanism. But there’s no guarantee that’s the real fault—wear or an electrical failure could cause similar symptoms.

So: it can work, but it is a DIY gamble, not a reliable fix. A safer option is professional service. If you do attempt it anyway, users specifically mentioned pure isopropyl or electronics contact cleaner, using minimal liquid, keeping the camera oriented so fluid drains back out, and allowing complete drying before powering on.

To help prevent recurrence, keep the camera clean and dry and avoid buildup around buttons, but some switch/contact problems are simply age and use related.