Technical Question - Resetting/Removing Dark Summoner

Hi All,

Before I go through the trouble of wiping one of my devices, I figured I would try here first...

I am trying to move some accounts around on my devices, since I use certain accounts more and would like to put them on the better devices. This however seems to be more difficult then I planned however

In case you need the background, I have 3 devices will call them A, B, and C. A and B currently have accounts and C does not. I moved the account from A to C and now it runs fine on both devices. The key is I would like to now move the account from B to A, but obviously A is still has the A account active.

Is there anyway to wipe out the game data on A so I can move the account from B to A or is my only option to reset device A completely?

Thanks for reading and thanks to anyone who can help me out with this problem.

Android or Apple?

if you use apple device, the only way is restore.
It means the device will be like new

Yes all apple devices.

By restore do you mean do a factory reset?

Or

Can I use the backup function, reset, and then restore the backup?

Thanks again for all the help.

yes factory reset
you can backup if you want

but back up contact
dont back up the game, or you will need restore again !