How to activate a Star Trek Online - Summer Blast Pack key?

Redeeming a Star Trek Online - Summer Blast Pack key is really simple, just follow these steps:

1. Open the Arc Client. 
2. Click the gear icon at the top right of the Arc Client. 
3. Select "Activate a Product" and enter your code. 
4. Launch the game and complete the Tutorial. 
5. Claim the item from the Zen Store in the "Promotions" tab.

For instructions on how to redeem the key via Steam, follow the official STO directions: https://www.arcgames.com/en/games/star-trek-online/news/detail/11078423  

The key is not working

If you have activated the key according to the guide but the code appears not to work, please check what type of error message you receive and depending on it follow the appropriate instructions:

• My key is Duplicated / Already used
• My key is Invalid
• My key is region locked / can't be activated in my country
• My key activated a different product
• My key did not activate all of the content