Upgrade ADSSP from 5700 to 6002 (3 steps) - Suggestios?

Upgrade ADSSP from 5700 to 6002 (3 steps) - Suggestios?

Hi everyone !!
In a few days I am planning to upgrade our adssp from 5700 to 6002, so do you have any sugestions,? 
it's better to make a tkt on support team? or can i do it by my self following the instruction on https://www.manageengine.com/products/self-service-password/service-pack.html?

Our instalation was made by default.

Thanks a lot !
Alex
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