When I was new on this forum, o_e_l_e_o mentioned some open source authenticators for Android and iOS, but I am an Android user to test Argis and andOTP whicch were open source and excellent, this gives me confidence that Tofu will be a good 2FA app as he also always post even excellently unique posts on this forum.


I will recommend Tofu or Authenticator as mentioned in the quote above by o_e_l_e_o.

@jerry0, you can try to see if you can get the backup on your device to write down the 16 character code, or making use of scanner to know if the 16 character will be displayed as I explained above after you export it from Google 2FA app to Tofu or Authenticator (some apps like FreeOTP on Android was unable to export such but not in development, maybe the reason)

If other fails, reset the authentication, your email, mobile number and your present (Google) 2FA may all be required to reset the 2FA. Reset it, get another 2Fa on Tofu. If the 16 code is not displayed by Coinbase as JeromeTash stated, then try if o backup and see if you can extact the backup from the file location it is stored on your device, or try to use a scanner for it to see if you will get the code. Like I mentioned before, scanners can be close source which is also a disadvantage, use open source apps. You can disconnect your device from internet connection during the process, extract the 16 character code, backup the code and uninstall the scanner.