Hi guys,
I recently sold a Nexus 6 I had run through the setup process (but otherwise was open box). Unfortunately, I completely forgot to disable FRP when shipping to the buyer.
So, upon his opening of a return request (and at his agreement to close the return if given the credentials to sign into the phone), I rendered the pertinent login information.
He successfully managed to sign in and remove my account from the phone (which is what we wanted to do), so (after securing the account), I sent him a message asking him to remove the return request. No response.
So, I'm assuming that letting the return request run its course without a response (6 days) will automatically rule in favor of the buyer returning the device (which I'm fairly sure the buyer does not want to do as well). I sent a $10 partial refund for the inconvenience in order to start the month-and-a-half clock ticking for the automatic closing of the return request.
Personally, I think this is ridiculous. There should be a way for sellers to close a return request (without penalty) given that they have sufficient evidence (in this case a Google sync timestamp) and release their funds.