I tried to search the forum, but could not find exactly the same problem. If there has been a thread about same problem, please direct me to it, thanks. Then, on to the problem.

I was on a fishing trip and tripped and fell into a small pond. My N900 was in my trouser pocket, but seemed not to get wet. I immediately switched it off and a couple of hours later turned it on. The battery was almost drained and after shutting the phone off, it would not switch on again. When I got home, the battery was dead, it would not accept charging from a car charger, wall charger or usb cable. I replaced it with new, and now it works again. Everything seems fine, except:

I am using Advanced Interface Switcher. I can turn WLAN on (I usually have WLAN disabled to save power), but when I go to open Internet connection, it just "time outs". It keeps searching, but nothing happens. It does not show even the 3G connections. When I turn WLAN back off, it takes some time, and finally I get "WLAN is not responding. Close application?".

If I try to connect to 3G internet connection, immediately when connection is made (the packet data icon stops flashing), the phone reboots. No pin code is asked. The reboot reason:

Also, one more symptom is that the processor seems to run hotter than earlier. It used to be around 30-35 degrees celcius and now it is mostly over 40 degrees (using QCPUFreq). Overclocked or not, the network problems persist. No matter if I reboot the phone.

Otherwise I have not noticed anything different. Applications work, keyboard works, sms:s work, telephony works, etc...

Hardware failure after all (because of the slight dive in the pond) or what could be causing these problems? Any logs I could check? Any dumps I could check? I would not want to try reflashing.