I think I already know the answer but figured it could not hurt to ask. Can you upgrade someone else's weapon if it is bound to them? For example, let's say my friend has a 2* Cutter. I have learned the 3* Striker recipe. Can I upgrade my friend's Cutter to Striker?
I would think the answer is no, but I thought I saw on the chat that someone could do this. If it is possible, how do you do it?
No.. You must have the weapon in your inventory to upgrade it.. and a weapon (or armor) that is bound cannot be traded..
If you want to uppgrade a friends weapon, he must not have used it before..