I have a C702i Sony Ericcson handset which is basically the biggest heap of crepe I've ever come across in that context. Basically, it hooks up to the internet constantly without any input from me, it shuts down unexpectedly and for no apparent reason, and it will frequently display the error message Sim Card not present.
I complained, sent it back and a second hand, damaged handset was sent to me as a replacement. I tried it, and basically after two days use it just displays the error message "Sim card not present". Obviously I have tried a variety of sim cards in both phones before saying owt, I've also tried my Sim card in a variety of other phones all of which worked perfectly.
I've done a wee bit of online research, and it transpires that these are known problems with this model and not unusual.
O2's best offer is to send me another 2nd hand phone of the same model.
The contracts up in January so pretty sure I'll be off at that point. Currently using a 5 year old spare handset, which works fine, but is very tatty.
Any suggestions?