Hey!
It's Nathan here from the Trello Support Team!
It looks like Safari on your phone could be set to block Cookies which is likely what's causing this issue, can you have a go at following these steps to stop your phone blocking Cookies:
- Open Settings
- Scroll down and tap on Safari
- Under Privacy and Security make sure Block All Cookies is turned Off
Once you've done this close the Trello app and reopen it and you should be able to sign in without any issues!
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.