Tech tools: Reviveaphone. From £15

Giving your waterlogged smartphone one last chance at life

We’ve all done it: brought our shiny electronic device far too close to water. Whether you’re unlucky, careless or just like living on the edge, there’s a good chance that, at some point, your smartphone will be reduced to a sodden paperweight. But no more.

Reviveaphone will (allegedly) bring your phone back from the brink. Switch it off and soak it in the solution for seven minutes, while it works to remove the mineral deposits said to be to blame for wreaking destruction on your phone. Then leave it to dry for 24 hours. You should end up with a working phone.
reviveaphone.com