Not unless you originally purchased it using the family link account setup.I just bought a OP6T and there's no Franco kernel for it yet. That's ok for me right now.
The problem is that I shall use my old OP3T for one of my children. On my even older OnePlus One I have that it's in "deep battery saving mode" set with Franco and Tasker I think. I want to do something like that on my OP3T to.
But now I've got a account for my daughter her self, managed by Family Link and all that. I wonder if there's a way for me to use my bought version of FK Manager on all these phones? I don't want to buy it for all these phones.
Even using family link, I believe, is limited on what it allows across devices. Otherwise you'll need to purchase it for her own account.
Sent from my OnePlus 3T using XDA Labs