IPhone photostream after reset?

I recently bought a new iPhone, I logged into my ICloud account thinking it would back all my photos up to my new phone, but I have read online that it only backs up the ones which have been saved into the camera roll in the last 30 days, is this true? Is there any way to get all my pictures back as I reset my old iPhone so have lost all them, Any help is appreciated.

ICloud is a different storage system and your iPhone storage is different but similar! All you have to do is enable Photostream and remember your iCloud account (User and Password) then you are able to log on any iDevice even on the web if you have the link! Also you're able to delete pictures that are on your Photostream so be careful on what you delete!

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