Hi.
My K750i camera seems to be playing up when I try to take a picture. Basically, when I half press the shutter button, the aiming square goes green & beeps to signify focus lock but when I fully press the button, it goes white again and doesn't take the picture
It may be me, but the shutter release button now only flashes 5 times when I open the lense cover (one longish lightup followed by four quick flashes). I could have sworn it used to flash all the time when the lense cover was open
Any ideas how to solve the problem (s)

or is it back to O2 with the phone
Thanks for your time
Simon