I changed my apple id-(email), now when i try to log into my account on my iphone-am told that password is incorrect. But password works when i log in on my pc

Question

I changed my apple id(email),now i cant log in on my iphone-am told
my password is incorrect- but password works on my pc

Answer 1

Perform these steps on a computer,
when you double-click an item you purchased before you renamed the account, the authorization dialog may show the old account name. If this happens, you will need to remove the old account name from the account name field, type the new account name, and click Authorize. This authorizes your computer to play the account's purchases.
If you are unsure about which account was used to purchase a particular item, follow these steps:
1) Control-click (or right-click) the item in your iTunes Library.
2) Choose Get Info from the menu that appears.
3) Click the Summary tab. The account name will be listed on the right.
If you need further assistance in locating the current account name, please reply with the account name listed in your items' Summary tab. In addition, please include the order number for those items if possible.
You can locate order numbers by following these instructions on reviewing your purchase history:
Seeing your iTunes Store purchase history and order numbers
http://support.apple.com/kb/HT2727
Once you done with the above steps, sync your device to your computer and reset the password via the follwoing link,
Http://iforgot.apple.com