Board Thread:Plants vs. Zombies 2: It's About Time/@comment-4009269-20140129155528/@comment-24275721-20140203145729

@JemCel03,

1. v1.8 is the recent one officially in Google Play or App Store and 1.9 in leaked format

2. You'll need to reinstall v1.8, then install v1.9 over it. Make sure you're connected to internet the whole time while 1.9 is being installed and logged in to the same google account from which you originally download v1.8 (some people tend to use multiple accounts that's why).