How to activate a Warframe: Kyroptera Syandana Skin key?

Redeeming a Warframe: Kyroptera Syandana Skin key is really simple, just follow these steps:

1. If you don't have a Warframe account yet go here to register and download the game. 
2. Head here and enter the Promo Code (must be logged in to Warframe PC Account).
3. Login to Warframe and check out your Warframe Kyroptera Syandana skin! 

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