How to Upgrade
1. Please logoff the game first.
2. Only the applicable items will appear in the web item list(character inventory) .
3. There are two kinds of escalation of the results: success and failures (not going to the lower grade, not disappear).
4. The items must import from the web item list into the web warehouse to upgrade.
5. Please import from the web warehouse to the web item list(character inventory) when upgrade completed.
6. After the upgrade, items can not drop or trade in the game,just only store in the account warehouse.