Sorry for the late response. I am just trying to figure out how to get on the insanely small headers on J1 (next to the headphone jack). Must have been designed for a JST type connector and I can not figure any easy way for you to access the ERx/ETx/5v/Gnd which would bypass the shield. Anyhow, if you can think of anything clever to get at them from your side, feel free to let me know. I will see if we can get some extra help from Veear/TIGAL.