From this detailed guide, you can learn how to install Seren Addon On Your Kodi.
The Seren Kodi addon is currently one of best addon for watching video content in a very high quality.
Seren is a addon selection that has been around for many years and is still one of the Best Addons available for watching Movies and Shows in high definition.
In order to use Seren, users must integrate a premium resolving service such as Real-Debrid, AllDebrid, or Premiumize. This is the best way to get the HD links you are looking for.
this installation guide applies to all compatible devices including Amazon Firestick, Fire TV, Android & iOS, Mac, Windows, Android TV, Android Boxes, etc
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How To Install Seren Kodi Addon
- Open Kodi
- Be sure to have the Unknown Source box checked as Kodi requires this before installing 3rd party add-ons.
- HOME Screen > Add-ons > Settings button 
> Add-ons > Enable Unknown Sources.
- From your Home Click Settings (cog icon top left)
- Click File Manager
- Click None
-Type in the following EXACTLY https://tinyurl.com/diggz123
- Click OK
- Click back on your remote/keyboard
- Click Add-ons
- Click Install from Zip File
- Click DIGGZ
- Click repository.diggz-x.x.zip.
- Wait for Add-On Enabled Notification
- Click Install from Repository
- Click Diggz Repository
- Click Video Add-Ons
- Click Seren
- Click Install
- Wait till you can see the message Add-on installed pops up. That's it! You can now find you addon from main menu > Add-ons, enjoy.