serial key bypass when downgrading

most people were having problems about the serial key when downgrading the patch 1.0.7.0 and i will show you how

serial key

install the bypass serial from the video in the desc
now that you download it copy LaunchGTAIV And 1911 and put those 2 in your GTAIV folder
now when you double click on LaunchGTAIV there will be a intro popping up on your screen just wait for the game to be started in now you are done
thanks to:VI BlOSH0CK IV for the video and download link
here is the video [not mine]:

modding

you can now download mods without crashing or no problems exmple: https://www.gtainside.com/en/gta4/trainers/49982-gta-iv-eflc-simple-native-trainer-v6-5/download/

[diegoquest757]

sad news: to everyone that just came in this guide. this guide and method to this bypass is now outdated due to VI BIOSHOCK IV removing the video for unknown reason (idk why he deleted the video) so if you want to mod you're game or downgrade so is best you might have to use this guide to help you downgrade: https://steamcommunity.com/sharedfiles/filedetails/?id=2330937567


note: the trainer and 1.0.7.0 guide is now outdated is well.