My father recently switched from having a Nokia cellphone to a Sony-Ericsson. I’m thinking of buying a new phone myself, since my current Nokia (6310i) does not reliably communicate with my (Nokia) blue-tooth carkit. I get a reliable connection about 40-50% of the time. Unacceptable. Nokia phones are not cheap, certainly not when you compare them to similar phones like Sony-Ericsson. Nokia offers less for more money, and we customers like it the other way around.
So I took my fathers phone (a W810i) and walked to my car. I put the key in the ignition and turned the car “on”. In the phones menu I enabled blue-tooth and looked for available devices. It found the Nokia carkit without any trouble and after supplying the connection-code (just 0000) I made a call over the Nokia carkit. Excellent. Next phone: no more Nokia.
Oct 302006
I own the S/E K750i myself. Mine hasn’t demonstrated any issues yet, but almost everyone I know with the same model (or its successor) complaines about recurring problems.
The ‘joystick’ appears to be very damage-prone, and in some occasions the phone starts entering digits automatically at random times. (like 1111111111111111111111111 etc).
Hans’ k750i has been in repair for about 4 months in total past year. Several times no problems were detected by the manufacturer, and hence no repairs done. Frustrating.
One reason I haven’t had any trouble myself may be the fact I hardly use it or take it with me, as I am home 95% of the time.
Just my 2 cents. Good luck!