Board Thread:General Discussion/@comment-34381188-20180118022336/@comment-29855003-20180118075701

it should've worked if you have the same operating system, which in this case is iOs. If your friend has an android phone, use up all of your gems and scouting tickets (tickets and gems that are uncollected in the present box are fine) then try to transfer again.

if the former didn't help, try reinstalling the app but make sure you still have the transfer code cause we don't want people losing their accounts right?

I also tried transferring my account from my ipad to different devices (iPhone, Samsung phone, bluestacks, etc.) and it works just fine for me.. but yeah i think it's the gems/tickets that is causing you troubles.