I entered the serial key linked to my account the first time I logged in to the game a few hours ago. I was trying to log in again to play with some friends and it asked for my serial key again. If I enter the key again it just says "Unable to log in, key already in use" Help? Welcome to MPGH - MultiPlayer Game Hacking, the world's leader in Game Hacks, Game Cheats, Trainers, Buying Battlefield Bad Company 2 serial key or account. Run the origin.exe in this folder with a rightclick -> run as administrator. If that won't work, head to activate.ea.com, log in to your EA Account and enter your product code on the Redeem Your Code page. If you still have issues with the validation of your game-key, you need to contact your retailer first. If your retailer can’t replace In all honesty, I purchased the game 7 years ago. I kept my patience, but if I had made a purchase recently, I would have just asked for a refund. But it is very unlikely if you have already passed the 2-hour mark. You would have to tolerate this if you want to play multiplayer and using Origin and not Steam. Need For Speed Hot Pursuit 2011 Serial Key Battlefield Bad Company 2 Asking For Serial Key Mount And Blade Serial Key For Viking Conquest Camtasia 9.0 1 Serial Key Microsoft Office Professional Plus 2016 Serial Key 2018 Easeus Data Recovery Wizard 6.1 Serial Key Free Download The Last Of Us Pc Serial Key Free So I recently received Bad Company 2 on steam and when ever I try to play on a multiplayer server I get a pop up to enter my product key. The things… Retry loading the game. If that does not work= try 'Verify Game Cache' in Steam. Right click with mouse on "Battlefield Bad Company 2" to 'Verify Game Cache'. Battlefield: Bad Company™ 2 > General Discussions > Topic Details. CivicAtom2 Dec 25, 2016 @ 4:19pm. Serial Key not working. I just bought this game and when I went to the multiplayer tab it asked me to create an EA account and I did. I then copied the key from the overlay and entered it, played some single player and quit the game. nOif4w.