Beware of this help! Certain requirements must be met for everything to go well.
The first thing is that each city you have is linked to a Facebook account, and these are friends on this social network. If this is not the case, DO NOT FOLLOW THIS HELP!
Sometimes, the link with your cities is lost even if the friendship is maintained on Facebook and everything is apparently correct. Following the game's refusal to help users with this (they simply do not respond when their help is requested for this issue), we are going to give the steps to fix it.
I remember (even if it is repetitive), that you must have each city linked to a Facebook account, then:
- Exit the game.
- Uninstall the game (including data).
- Install the Facebook App (if you don't have it installed).
- Log into the Facebook App and identify yourself with the account linked to the city you want to fix the linking. Note: if you already had the App installed and with a different Facebook account than the one you want to identify yourself with, you will have to close the active Facebook session in the App, and log in with the account linked to the city you want to fix.
- Exit of Facebook.
- Install the game again and open it.
- Do the short tutorial at the beginning of SimCity BuildIt.
- Once done (it usually takes just a minute), an icon called Settings (symbolized with a screwdriver and wrench crossed) will be enabled on the top right, where you have to click.
- Then click on Login to Facebook.
- After a few seconds you will be returned to the game (without having to enter username and password), and you will be asked which city you want to upload.
- Select the appropriate city.
- You will see that the linking is fixed (the bottom left icon on the SimCity BuildIt screen will show the cities you didn't see before).
Important note: after linking (it may take up to 24 hours before the linking is finally visible), the transfer during the first 24 hours is restricted. You must not transfer storage items, Vu or terrain in a number greater than 30 or at the price of one, or they will not be seen with the other cities.
Final note: since 2023, linking between cities can be done through the game itself, without the need for linking between Facebook accounts.
(*) Contributed by Atlantis