Default Phone vanished and no charging

Hi, Looking for help. Have 02 xda bought in UK. Have ROM upgrade installed. Am travelling for 7 weeks in Switz. XDA was working fine and then suddenly stopped recognizing it was a phone. No radio packet info. given in device ID. Tried all obvious things - soft reset, sim card out and in again. Also now refuses to charge, so eventually will lose data, which is backed up on PC - but that's back in London.

Any suggestions very very gratefully received. This is a working trip and I bought the damn thing specifically for it.

Thanks

Jonathan