No "scan sync code" button on my androids

Trying to add a 2nd android to my sync chain which already has my laptop and my first android. On the androids there is no “scan sync code” button, and sync itself isn’t working on the laptop or the first android. I UNDERSTAND THAT THIS MAY BE ROUTINE MAINTENANCE OR AN EMERGENCY FIX, but please try o let us know when that is the case.

Lappy windoze 8.1, Brave 132113
1st droid Brave 132112
2nd droid that’s not in sync chain Brave 12981
There are no update option/button/links on either droid