The latest version 1.3 of the S20 does not have any way to remove the PCB for soldering a header to be able flash the device with custom firmware. See attached pic. Any ideas on how to put in a 4 pin header without soldering?
Hi Taylormia, I've just some similar sockets (CN/AU variant) and have the same issue - I'm going to embark on building something like this: http://www.instructables.com/id/ICSP-Pogo-Pin-Programming-Adaptor/
I'm not very experienced with soldering, but I presume another way would be to sort of surface-mount some headers carefully (solder so the plastic of pin headers are sort of "floating")