iPhone 4s doesn't accept any wi-fi and bluetooth password

Hi guys, i have a very big problem regarding iPhone's wi-fi and bluetooth connectivity,

whenever i try to connect any password protected wi-fi iPhone says 'incorrect password' soon after i realize that even bluetooth doesnt accept any device which are password protected and i recieve same error, im not sure but i think it happened after 5.1.1 update, i tried everything but nothing happened, things i tried are below;

- tried different routers/modems

- tried different iPhones (which are connected but mine NO)

- reset Network via iPhone

- hard reset

- tried different kinds (WEP, WPA etc) and combinations of password

- tried different channels (12-13-11-9-Auto etc)

None of them above solved my problem now im trying restore, it will take sometime i guess (internet speed is low)

im using iPhone 4s

ios 5.1.1

If you know anything let me know, help me Please.

Kind Regards.