Attach a thread to the antenna wire BEFORE removing the antenna. Pull the antenna throught with the thread attached. After you get the antenna out, cut the thread from the antenna but LEAVE THE THREAD threaded thru the cartridge slot. Tape it to the cartridge slot so it doesn't fall out while you're working on the DS. After repairing, re-tie the thread to the antenna and use the thread to pull the antenna back thru to where it belongs. PULL GENTLY!