This is my LGA fixture I am developing to program and test RFD77101 (Simblee) and similar LGA SMT / SMD modules from RF Digital. These fixtures are pinned out so they can be plugged directly into the RFduino USB programming shield or my RFDmbedMK20 adaptor shield.
This first prototype version of the fixture requires holding the DUT down with a finger for the few seconds it takes to upload a sketch.