If your Grand thef Auto 4 lcpdfr 1.0 taser is not working after installing manually or automatic new lcpdfr 1.0 the this will fix the things up . We have personally tested and it works perfectly fine . please head on to link below and get full step by step guide .During game on pc if you press T twice it will activate the taser and you have to use your fire key to deploy . The link below will cover all the step by step guide how to fix the taser non working issue but i guess if you simply copy their files and add them to your gta 4 folder this will work fine . But if you already moded your game with different mods then we will suggest do manually . Remember always keep or do back up before making any changes .