Hello I had change my name from oFrqdie_HCF to 6LACK_o0o. And now I cant login, I already have 3 logins so im stuck. I hope somone can help me
Download a cracked launcher and enter your old username and do the /login command with the password you used before then do /unregister with your password and then go back to normal minecraft and load up the game with your account and do /register.
http://coldnetwork.net/threads/how-to-remove-account-from-your-account-list.15629/ This will help you!
" Logging in with username Getting syncinfo for selected version Queueing library & version downloads An update to your launcher is available and is required to play 1.8.8. Please restart your launcher. Logging in with username Getting syncinfo for selected version Queueing library & version downloads An update to your launcher is available and is required to play 1.8.8. Please restart your launcher." this makes sences
Because it is a new launcher you just need it to unregister your account then you can go back to using the normal minecraft launcher
because you using another launcher, just login with your name that you don't want and do unregister, then go BACK to your ORIGINAL minecraft launcher and register with your new name.