newbie here, just need to clarify some procedures on the install for s300j on a JDM 37820-P30-J00


1. On J1 Do i need to remove the (surface mount 0 ohm resistor) or just leave it there and solder the jumper above it.

2. On J4 just removal of that part and on CN4 solder (1x4pin) on 1-4 (Yellow circle)?

cheers!
Philip