By Lord Ptolemy
Microsoft Account support is now available on the launcher's Beta Stable branch. Please see the update on 5/22/21 for more information. Please see the blog post https://www.technicpack.net/article/support-for-microsoft-accounts-is-now-available.165
If you've read the recent MC account migration (https://www.minecraft.net/en-us/article/java-edition-moving-house) and you use Technic Launcher (or any other custom launchers), then do not migrate your account (to a Microsoft account) or you will be unable to use the launcher.
The new auth system that Minecraft uses after this migration isn't support by any MC launchers other than the vanilla launcher, nor do we currently have any information about it so we can implement it.
When? According to Mojang, you'll be forced to migrate your account starting in early 2021. We hope to have support for their new auth system by then. The migration is currently not ongoing.
What if I create a new Minecraft account? Minecraft accounts created on December 1st, 2020 and later, are bound to Microsoft accounts already, and won't be able to use the Technic Launcher, or any other third-party launcher, until Mojang/Microsoft create a solution we can use.
By Lord Ptolemy
In an effort to increase the security of the forum, username based logins have been disabled. Please use the email associated with your forum account to login in from now on. Furthermore accounts will be locked for 30 minutes following 3 failed attempts to login. Apologies for any inconvenience this may cause.
So a year or so back I lost my main device, with the Google Authenticator app. At that time I thought it wasn't such a bad issue, as I thought I had a 'recovery' code. Anyway, fast forward to about a month ago, I discovered that out of all my dozens of codes, none of them work with Technic.
Is there any way I can remove 2fa from my account? I have access to my email, and the server where the modpack files are hosted. My modpacks on file are "This contains trains", and/or "Modified Shovel". I also have the original login details to both technic and minecraft, if that is of any verification use.
Note that my current username does not match the one that I used during the use of my technic account.
If I need to provide any additional proof of ownership, please let me know. Any help appreciated