Chosen Solution

iphone was wrapped around a slightly wet towel and now the bottom left of the screen does random taps or when i tap the bottom left it would tap somewhere else….i have taken it to get the screen replaced and the screen is fine but dont see what the problem is…the phone shop said maybe a software issue

The most likely scenario is that moisture got into your phone. The touch circuitry is pretty much all in the screen so if there are any ghost touching issues, a replacement screen should be sufficient. However, if a known-good replacement screen still has the same issue, then the problem is probably at the logic board level. You could check the connector on the logic board to see if there is any visible corrosion but beyond that, logic board issues require a visit to your friendly neighbourhood micro-solderer. Update (09/14/2018) @refectio What do you think i should do then as the guy in the shop took my screen off and then said it wasn’t the screen then he put it back on and now the phone is stuck in a boot loop and restoring the phone doesnt resolve this.

to get moisture out of phone , leav it in a bag of rice