For those players who have bound their accounts and clear game logs, you may restart the game after update. Some players didn't know how to switch back his/her bound in this case, here tips are for you:
A. Before enter the your base,
1. Notice "Login In" on the top right corner, tap it!
2. A popup shows about account login, then login with your bound account here.
B. After enter your base
1. Tap "More"->"Account"
2. Notice this sentence "You can login or create other account after you bind this guest account". Bind your guest account firstly. Choose one type to bind, here example is Tap4fun account.
3. If you've had a Tap4fun account, please tap "Bind Account", if you haven't got one, tap"Register new account".
4. Sign up with your info and tap "Register"
5. Tap"Yes" to bind your guest account. The game restart and shows you bind your account successfully.
6. Enter your base and tap "More"->"Account", you can found the button "Other Account Login" and tap it to login with your bound account.