Alexander Bellmann, I attached part of the manual to the device. Just scroll down to Documents ''' [http://www.ifixit.com/Device/Sony_Ericsson_Xperia_X10?revisionid=HEAD|on this page]''' and click on the link. Page 70 of that manual will show you all you wanted to know. The part you are looking for is SIM and MicroSD FPC part number 1224-1548, and it is available [http://stellatech.com/sony-ericsson-x10i-sim-micro-sd-reader-flex,a,en,809155.html|right here.] Hope this helps, good luck.