Is your new 3.5lb trigger connector of the kind that helps prevent overtravel (Ghost 3.5 Rocket)? If so:
And your pistol will not fire therefore you will not be able to disassemble your pistol (normal disassembly procedures require you fire your empty pistol so that you may remove the slide, you can not disassemble a cocked pistol). Because the Trigger Control Tab/Stop (TCT) on the Rocket or Tactical is limiting the rearward movement of the trigger you must remove the firing pin assembly to disassemble your pistol so that you can remove the slide assembly. Please see number 4 in Section II. Once the slide is removed you may begin in Section II.