Help water damage - dual sim htc one m8

[a4ma2009]

last night , while i was showering some water got to my htc m8 (alot of water)

i immediately took it to the phones store , he dried it but it needed a new ic power to get working again , so, he replaced it and it got working

but the first sms is not working (it's not showing on the screen at all. only the second sms)
also, the wifi is not working (wifi software in the system doesn't detect anything)

any suggestions to repair the phone ??




sorry for the langauge, i know it sucks

 

[a4ma2009]

about the wifi , what is to be done ?? replace something to get it working ? (like what ? )

the wifi seems like a lagging in the software (it shows white screen when i open wifi to search for access points) .. would it work if i reset the system software ??