# Synology - Upgrade 1515+ to 1517+

Worked like a charm

[![image.png](https://docs.sflservicesllc.com/uploads/images/gallery/2025-06/scaled-1680-/6eiimage.png)](https://docs.sflservicesllc.com/uploads/images/gallery/2025-06/6eiimage.png)

[https://github.com/prt1999/Synology\_model\_upgrade](https://github.com/prt1999/Synology_model_upgrade)

Ran the above process

[![image.png](https://docs.sflservicesllc.com/uploads/images/gallery/2025-06/scaled-1680-/msoimage.png)](https://docs.sflservicesllc.com/uploads/images/gallery/2025-06/msoimage.png)

Forum Discussions

[https://xpenology.com/forum/topic/69328-converting-ds1515-into-ds1517-dsm-72/page/3/](https://xpenology.com/forum/topic/69328-converting-ds1515-into-ds1517-dsm-72/page/3/)

[https://xpenology.com/forum/topic/69328-converting-ds1515-into-ds1517-dsm-72/](https://xpenology.com/forum/topic/69328-converting-ds1515-into-ds1517-dsm-72/)

Revert Back to 1515+

Synology DOM module pinout

Plug into the 2nd row, i.e. straight pins, with normal USB assignment.  
2 red  
4 white  
6 green  
8 black