Help Back & Option button press themselves

[Jason Robins]

Hi All,

I dropped my Samsung Galaxy S5 down the toilet - The water came off quite easily but I think the impact may of damaged the phone, I don't want to be ripped off or given the wrong advice in a local phone shop so I was hoping someone could please offer me some support.

When I first dropped the phone, the battery instantly said it was dead (when a charger was plugged in) and even though previously it was on 70%. The phone then powered up by itself while charging after a minute and now the battery was 60%. The back and option buttons now constantly press themselves if the phone is elevated or rotated in the slightest (I have to use it on a desk), if I do pick it up the battery goes down so fast (but I think that may be something to do with the back/option buttons pressing themselves.

Is there any data I can provide to help diagnose this?

Many Thanks in advance for your support!

 

[Fox Mulder]

The S5 is rated for IP67 water resistance which means a brief dunk in the toilet shouldn't be enough to damage it. Of course this assumes the back cover and charging port cover are secured tightly. If they aren't it's possible water can get in and do damage.
What you should have done immediately after retrieving it was pull the battery, dry the phone off externally and inspect it to see if the covers were loose either before or as a result of the drop. For good measure a few days in a bag of rice would have been a good idea as well, and it would have been best not to re-insert the battery or attempt to apply power for those few days.
If this has just happened I'd suggest pulling the battery now and attempting the dry-out procedure and see if it helps. If it's already been a few days I'm afraid the damage is probably done.
As for the specific symptoms there isn't really much we can tell you as impact or water damage will cause all sorts of random behavior.