I use two Google accounts and add them to . Let's say acc1 and acc2. When I try to buy an app in the Market, it chooses acc1's Checkout account, and I don't see an option to change to acc2. Can I use acc2 to pay this? And I still want acc1 as the main account for other purposes. (i.e. Talk, Mail, contacts)
Possibly related question: How Do I Know Which Google Account is Used for the Market?
As of mid-2011 the Android Market supports multiple accounts.
To add another account... Press menu button – select settings – Accounts and Sync – tap on “Add account” and add your another gmail account. To activate or use another gmail account in the market, open the new market app (v 3.0.26) and select “Accounts”. A list will pop-up showing all your gmail accounts that you’ve added in “Accounts and Sync”. Select the one of your choice and you’re good to go.
P.T. details how to accomplish this by simply adding another account to the phone and then selecting it in Google Play Store settings.
It's worth noting that originally the only way to change the Google Account associated with the Google Play Store was to do a factory reset of your phone and set it up again from scratch.
Here are three option, but 2nd and 3rd maybe works better xD
You can go to Settings/Applications And CLEAR DATA to Android Market app and Google Services Framework
Or you can try to go to Settings/Accounts & Sync click on your account and hit on Remove Account Button
Or try to clear data in the Gmail program, it should ask for a new account xD
That should unlink your account from the system and will ask you again for an Account to link to the system.
But take care on this because can be erased/lost some of your data as Conctacts associated with the previously added accout, also Email and Talk
Mainly because you are changing your linked account and those services use info from that linked account.
